PATENT DOCUMENT

Publication Number: US-7557320-B1
Application Number: US-18303808-A
Country: US
Kind Code: B1

Title: Surface-mount dome switch

Abstract:
This invention is directed to a surface-mounted dome switch for use in an electronic device. The switch may include a dome having a conductive inner surface operative to create an electrical path between adjacent conductive pads of a circuit board. The dome may include a tab extending away from the periphery of the dome such that the tab is parallel to the circuit board when the dome is mounted to the circuit board. The tab may be mounted a pad on the circuit board using SMT, in the same manner that any other electronic device component would be mounted. In some embodiments, a raised edge may be inserted underneath the dome to increase the travel required to actuate the dome. The increased travel may provide a more pleasing user experience.

Claims:
1. A switch assembly, comprising:
 a circuit board comprising at least two conductive pads; 
 a dome operative to be mounted on the circuit board, wherein:
 the dome is placed over a first of the at least two conductive pads; and 
 the dome comprises a tab extending from the periphery of the dome and operative to be coupled to the second of the at least two conductive pads; and 
 
 a raised edge placed between the periphery of the dome and the circuit board. 
 
   
   
     2. The switch assembly of  claim 1 , wherein the tab extends away from the area enclosed by the dome. 
   
   
     3. The switch assembly of  claim 1 , wherein the tab is constructed from the same material as the dome. 
   
   
     4. The switch assembly of  claim 1 , wherein the tab comprises a mounting portion operative to be coupled to the second of the at least two conductive pads and a connection portion operative to connect the mounting portion to the dome. 
   
   
     5. The switch assembly of  claim 1 , wherein the periphery of the dome rests on a non-conductive portion of the circuit board. 
   
   
     6. The switch assembly of  claim 1 , wherein the height of the raised edge is in the range of 0.005 mm to 0.04 mm. 
   
   
     7. The switch assembly of  claim 6 , wherein the height of the raised edge is 0.02 mm. 
   
   
     8. A switch assembly, comprising:
 a circuit board comprising at least two conductive pads; and 
 a dome operative to be mounted on the circuit board, wherein:
 the dome is placed over a first of the at least two conductive pads; and 
 the dome comprises a tab extending from the periphery of the dome and operative to be coupled to the second of the at least two conductive pads, wherein the tab comprises a mounting portion operative to be soldered to the second of the at least two conductive pads and a connection portion operative to connect the mounting portion to the dome. 
 
 
   
   
     9. The switch assembly of  claim 8 , wherein the tab extends away from the area enclosed by the dome. 
   
   
     10. The switch assembly of  claim 8 , wherein the tab is constructed from the same material as the dome. 
   
   
     11. A switch assembly, comprising:
 a circuit board comprising at least two conductive pads; and 
 a dome operative to be mounted on the circuit board, wherein:
 the dome is placed over a first of the at least two conductive pads; and 
 
 the dome comprises a tab extending from the periphery of the dome and operative to be coupled to the second of the at least two conductive pads, wherein the tab comprises a mounting portion is operative to be coupled to the second of the at least two conductive pads using surface-mount technology and a connection portion operative to connect the mounting portion to the dome. 
 
   
   
     12. The switch assembly of  claim 8 , wherein the tab comprises a mounting portion operative to be coupled to the second of the at least two conductive pads and a connection portion operative to connect the mounting portion to the dome. 
   
   
     13. The switch assembly of  claim 11 , wherein the tab extends away from the area enclosed by the dome. 
   
   
     14. The switch assembly of  claim 11 , wherein the tab is constructed from the same material as the dome. 
   
   
     15. The switch assembly of  claim 11 , wherein the tab comprises a mounting portion operative to be coupled to the second of the at least two conductive pads and a connection portion operative to connect the mounting portion to the dome. 
   
   
     16. A switch assembly, comprising:
 a circuit board comprising at least two conductive pads; 
 a dome operative to be mounted on the circuit board, wherein:
 the dome is placed over a first of the at least two conductive pads; and 
 the dome comprises a tab extending from the periphery of the dome and operative to be coupled to the second of the at least two conductive pads; and 
 
 the circuit board comprises a third conductive pad located underneath the periphery of the dome. 
 
   
   
     17. The switch assembly of  claim 16 , wherein the tab extends away from the area enclosed by the dome. 
   
   
     18. The switch assembly of  claim 16 , wherein the tab is constructed from the same material as the dome. 
   
   
     19. The switch assembly of  claim 16 , wherein the tab comprises a mounting portion operative to be coupled to the second of the at least two conductive pads and a connection portion operative to connect the mounting portion to the dome. 
   
   
     20. A method for mounting a dome switch to a circuit board, comprising:
 providing a circuit board with a center pad operative to be covered by a dome and a mounting pad located outside the periphery of the dome; 
 placing a dome having a tab extending from the periphery of the dome over the center pad; 
 aligning the tab with the mounting pad; and 
 coupling the tab to the mounting pad by soldering the tab to the mounting pad. 
 
   
   
     21. The method of  claim 20 , wherein the dome is operative to deform and contact the center pad in response to a user input. 
   
   
     22. A method for mounting a dome switch to a circuit board, comprising:
 providing a circuit board with a center pad operative to be covered by a dome and a mounting pad located outside the periphery of the dome; 
 placing a dome having a tab extending from the periphery of the dome over the center pad; 
 aligning the tab with the mounting pad; and 
 coupling the tab to the mounting pad using a surface-mount technology process. 
 
   
   
     23. The method of  claim 22 , wherein the dome is operative to deform and contact the center pad in response to a user input. 
   
   
     24. The method of  claim 22 , further comprising coupling the raised edge to the circuit board. 
   
   
     25. A method for mounting a dome switch to a circuit board, comprising:
 providing a circuit board with a center pad operative to be covered by a dome and a mounting pad located outside the periphery of the dome; 
 placing a dome having a tab extending from the periphery of the dome over the center pad; 
 aligning the tab with the mounting pad; 
 coupling the tab to the mounting pad; and 
 placing a raised edge under the periphery of the dome. 
 
   
   
     26. The method of  claim 25 , further comprising coupling the raised edge to the circuit board. 
   
   
     27. A method for mounting a dome switch to a circuit board, comprising:
 providing a circuit board with a center pad operative to be covered by a dome and a mounting pad located outside the periphery of the dome; 
 placing a dome having a tab extending from the periphery of the dome over the center pad; 
 aligning the tab with the mounting pad; 
 plastically deforming the tab to fold over itself; and 
 coupling the plastically deformed tab to the mounting pad. 
 
   
   
     28. The method of  claim 27 , wherein deforming further comprises folding the tab over itself away from the dome such that the dome is raised by an amount equal to the thickness of the tab. 
   
   
     29. A dome switch for use with an electronic device, comprising:
 a dome having a conductive inner surface; and 
 a tab extending from the periphery of the dome and away from the inner surface of the dome, wherein the tab is operative to be mounted to a circuit board, wherein the tab is mounted to the circuit board using surface mount technology. 
 
   
   
     30. The dome switch of  claim 29 , wherein the dome and tab are stamped from a single sheet of material. 
   
   
     31. The dome switch of  claim 29 , wherein the tab is biased to retain the dome against the circuit board when the tab is mounted to the circuit board.

Description:
BACKGROUND OF THE INVENTION 
   This invention is directed to dome switch for use in an electrical device. A dome switch may be used to provide electrical signals to an electronic device in response to a physical actuation provided by a user. For example, a dome switch may include a dome with a conductive inner surface operative to close a circuit when the dome is pressed and the inner surface is placed in contact with one or more pads located underneath the dome, for example pads of a circuit board. 
   The dome may be coupled to the circuit board using any suitable approach. For example, an adhesive sheet may be placed over the dome such that a portion of the adhesive sheet extends beyond the periphery of the dome and may be coupled to the circuit board. The amount of adhesive sheet extending beyond the periphery of the dome may be selected to allow the dome to deform (e.g., in response to a user input) while maintaining the dome mounted to the circuit board. 
   Domes may be manufactured using any suitable approach. For example, several domes may be stamped from sheet metal and distributed on an adhesive sheet. The manufacturer may then provide a sheet that includes several domes to a device manufacturer, who may in turn extract domes with adhesive extending beyond the periphery of the domes to couple the domes to the electronic device. The manufacturing process, however, may be costly as domes must be accurately placed on an adhesive sheet, and the adhesive sheet must be cut to extract individual domes. In fact, the cost of the adhesive sheet alone may be significantly larger than the cost of the domes placed on the sheet. 
   SUMMARY OF THE INVENTION 
   A dome switch operative to be surface-mounted without the use of an adhesive sheet is provided. 
   The dome switch may include a dome having a conductive inner surface and a tab extending from the periphery of the dome. The tab may be oriented to extend away from the inner surface of the dome. The dome may be operative to mounted to a circuit board including at least two pads. The circuit board may include a center pad over which the dome may be placed. The circuit board may also include a second pad operative to be coupled to the tab to retain the dome over the center pad. 
   The second pad may be positioned outside of the area defined by the periphery of the dome when the dome is mounted to the circuit board. The second pad may be sized using any suitable approach, including for example based on the size of the tab, or based on the coupling required to retain the dome mounted to the circuit board. The tab may be mounted to the second pad using any suitable approach, including for example soldering or surface-mount technology. 
   In response to the user actuating the dome, the dome may deform such that the inner surface of the dome contacts the center pad. This may create an electrically conductive path between the second pad and the center pad via the tab and inner surface of the dome. In response to detecting the electrically conductive path (e.g., a circuit is closed), the electronic device may perform a suitable operation. 
   In some embodiments, a raised edge may be inserted between the periphery of the dome and the circuit board. The raised edge may increase the travel required for the dome to contact the center pad, which may improve a user&#39;s experience. In some embodiments, only one edge or portion of the dome may be raised. For example, the tab may be folded over itself away from the dome to increase the height between the dome and the circuit board, for the portion of the dome adjacent to the tab, by the thickness of the tab. 

   
     BRIEF DESCRIPTION OF THE DRAWINGS 
     The above and other features of the present invention, its nature and various advantages will be more apparent upon consideration of the following detailed description, taken in conjunction with the accompanying drawings, and in which: 
       FIG. 1  is a schematic view of an illustrative dome switch mounted to a circuit board in accordance with one embodiment of the invention; 
       FIG. 2  is a schematic view of the illustrative dome switch of  FIG. 1  to which an additional component is placed in accordance with one embodiment of the invention; 
       FIG. 3  is a cross-sectional view of an illustrative dome switch mounted to a circuit board in accordance with one embodiment of the invention; 
       FIG. 4  is a cross-sectional view of a dome assembly having a raised dome in accordance with one embodiment of the invention; and 
       FIG. 5  is a cross-sectional view of a dome assembly having a raised dome on one side of the dome in accordance with one embodiment of the invention. 
   

   DETAILED DESCRIPTION 
   A dome switch operative to be directly mounted to the surface of a circuit board is provided. The dome switch may include a deformable dome having a conductive inner surface. The dome may be placed over one or more conductive pads of a circuit board such that the dome is operative to close a circuit between the one or more conductive pads and the circuit board when the dome is pressed (e.g., and inner surface of the dome comes into contact with the one or more conductive pads. 
   The dome may include one or more tabs extending from the periphery of the dome and operative to be coupled to the circuit board (e.g., soldered to a solder pad of the circuit board). The size and distribution of the tabs may be determined based on any suitable criteria, including for example the size of the dome and the expected force applied to the dome. For example, large domes may include several tabs individually coupled to a circuit board. 
   In some embodiments, additional layers of material may be placed between a dome and the circuit board to raise the dome (e.g., and increase the height between the top of the dome and the circuit board). The increased height may require a user to apply additional force to the dome to provide an input, which may provider a crisper user experience and a superior tactile fee. 
     FIG. 1  is a schematic view of an illustrative dome switch mounted to a circuit board in accordance with one embodiment of the invention. Dome assembly  100  may include dome  110  and circuit board  140 . Dome  110  may include raised surface  112  and wall  114 . Raised surface  112  may have any suitable shape, including for example a curved surface or a planar (e.g., flat) surface. Dome  110  may have any suitable shape (e.g., defining the periphery of raised surface  112 ). For example, dome  110  may have a circular, polygonal, or any other suitable periphery. In some embodiments, the periphery of dome  110  may be determined or selected based on restrictions or limitations of the electronic device or circuit board for which the dome is used. The periphery of dome  110  and the shape of raised surface  112  (e.g., the topology of raised surface  112 ) may be selected to allow a user to deform dome  110  with a selected force while remaining within a predetermined footprint. 
   Dome  110  may be constructed from a deformable material such that, upon pressing dome  110 , raised surface  112  may be placed in contact with a conductive pad of circuit board  140 . Raised surface  112  may be operative to deform in any suitable manner, including for example to buckle or invert. The inner surface of dome  110  may include a conductive portion such that an electrically conductive path may pass through dome  110  to the conductive pad, thus closing a circuit that the electronic device may detect. Alternatively, the entirety of dome  110  may be conductive (e.g., dome  110  is constructed from a conductive material, such as a metal). 
   In some embodiments, an additional component may be placed on raised surface  112 .  FIG. 2  is a schematic view of the illustrative dome switch of  FIG. 1  to which an additional component is placed in accordance with one embodiment of the invention. Dome assembly  200  may include dome  210  and circuit board  240 . Dome  210  may include dome  230  placed over dome  210 . Dome  230  may be coupled to dome  210  using any suitable approach, including for example using an adhesive, tape, mechanical fastener, or any other suitable coupling mechanism. Dome  230  may be constructed in any suitable shape, including for example the same shape as dome  210 , or a larger or smaller shape. Dome  230  may have any suitable mechanical properties such that, for example, the force required to actuate dome  230  (e.g., before dome  210  can be actuated) is a particular selected or predefined amount. Dome  210  may include any other suitable component coupled to the top surface of dome assembly  200 . For example, dome assembly  200  may include nub  232  operative to provide an additional element for tactile feedback. Nub  232  may include any suitable shape, including for example a feature for receiving or engaging an electronic device component (e.g., a button). In some embodiments, nub  232  may be a solid (e.g., so that a force applied to nub  232  is directly applied to one or both of domes  210  and  230 ). Nub  232  may be coupled to dome  210 , dome  230 , or any other element of dome assembly  200 . 
   Dome  110  (or any of the domes of  FIG. 2 ) may be manufactured using any suitable approach. In some embodiments, dome  110  may be stamped or punched from a sheet of material (e.g., sheet metal). Alternatively, dome  110  may be manufactured using molding, forging, machining, welding, forming, cutting, or any other manufacturing process or combination of manufacturing processes. 
   Dome  110  may be coupled to circuit board  140  using any suitable approach. In some embodiments, adhesive sheet  130  may be placed over dome  110  and circuit board  140  such that portions of adhesive sheet  130  adheres to both dome  110  and circuit board  140 . To ensure that dome  110  remains in contact with circuit board  130 , adhesive sheet  130  may extend past some or all sides of dome  110 . While adhesive sheet  130  may retain dome  110  mounted to circuit board  140 , it may require the area adjacent to dome  110  on circuit board  140  to be clear of components to provide an adequate surface for adhesive sheet  130 . This may in turn cause space to be lost on circuit board  140  near dome  110 , and may also increase manufacturing costs, as different machines or processes must be used to solder or mount electronic components to circuit board  140  and place and attach adhesive sheet  130  and dome  110  to circuit board  140 . 
   As an alternative method for coupling dome  110  to circuit board  140 , dome  110  may include one or more tabs  120  extending from dome  110 . For example, tab  120  may be coupled to the bottom end of wall  114  (e.g., the end of wall  114  that is placed in contact with circuit board  140 ) and extend away from the area underneath raised surface  120 . Tab  120  may be constructed from any suitable material, including for example the same material as dome  110 . In some embodiments, tab  120  may be constructed as part of the manufacturing process of dome  110  (e.g., press or punch out tab  120  and dome  110  simultaneously). 
   Tab  120  may have any suitable shape or size. For example, tab  120  may be sized based on the dimensions of dome  110 . The area of tab  120  may be selected to ensure that dome  110  may remain substantially fixed (e.g., not lifting from circuit board  140 ) to circuit board  140 . In some embodiments, the coupling between tab  120  and dome  110  (e.g., along wall  114 ) may be biased to press dome  110  into circuit board  140  when tab  120  is coupled to circuit board  140 . The total area of tab  120  may be substantially less than the area around dome  110  required by an adhesive sheet (e.g., adhesive sheet  130 ) to secure dome  110 . 
   Tab  120  may have any suitable shape. In some embodiments, tab  120  may include connection portion  122  operative to connect wall  114  and mounting portion  124 . Connecting portion  122  may less wide, or enclose a smaller area than mounting portion  124  to allow dome  110  to deform easily. For example, if connection portion  122  were to exceed a particular width, or were coupled to more than a particular amount of wall  114  (e.g., based on the shape of wall  114 ), the mechanical stresses between wall  114  and connection portion  122  may prevent a user from easily actuating dome  110 . 
   Mounting portion  124  may have any suitable shape or area for mounting dome  110  to circuit board  140 . In some embodiments, mounting portion  124  may be wider than connecting portion  122  to ensure that dome  110  is properly mounted to circuit board  140 . The shape or dimensions of mounting portion  124  may be selected based on any suitable criteria, including for example available space on circuit board  140 , the shape or area required to secure dome  110 , or any other suitable criteria. For example, mounting portion  124  may be a 1×1.2 mm portion, or a 0.8×1.2 mm portion. Alternatively, mounting portion  124  may be operative to be mounted on a 1×1.2 mm pad, or a 0.8×1.2 mm pad of the circuit board. Mounting portion  124  may be operative to be coupled to circuit board  140 . For example, mounting portion  124  may be operative to be attached to a pad of the circuit board.  FIG. 3  is a cross-sectional view of an illustrative dome switch mounted to a circuit board in accordance with one embodiment of the invention. Dome assembly  300  may include circuit board  340  on which dome  310  is mounted. Dome  330  and nub  332  may be coupled to dome  310  to change or refine the tactile response to inputs on dome assembly  300 . Dome  310  may include tab  320  extending from a portion of the periphery of the dome. Tab  320  may include connection portion  322  and mounting portion  320 . The various components of dome assembly  300  may include some or all of the features of corresponding components of dome assemblies  100  ( FIG. 1) and 200  ( FIG. 2 ). 
   Mounting portion  324  may be coupled to any suitable portion of circuit board  340 , and using any suitable approach. In some embodiments, dome  310  be coupled to board  340  using an adhesive, tape, soldering, welding (e.g., spot or laser welding), heat staking, or any other suitable process. In some embodiments, circuit board  340  may include one or more portions operative to receive tab  320 , such as for example pad  342 . Pad  342  may include, for example, a solder pad to which mounting portion  342  may be soldered. To prevent solder from seeping into the space underneath dome  310  and into non-conductive region  348 , connection portion  322  may not be coupled to circuit board  340 . This may also allow the sides of dome  310  to raise slightly when dome  310  is actuated, further enhancing the user&#39;s experience. 
   In some embodiments, pad  342  (and dome  310 ) may be mounted to circuit board  340  using surface-mount technology (SMT). For example, the same SMT machines or processes used to mount other electronic device components (e.g., resistors, capacitors, processors, memory) to circuit board  340  may also be used to mount dome  310 . This may significantly reduce the manufacturing time of an electronic device, as the same process can be used to mount domes and other electronic device components (e.g., the process of mounting a dome using an adhesive may be eliminated). In addition, an SMT process may be fully automated and use optical components to ensure accuracy. In contrast, the use of an adhesive sheet may not be as easily animated or as accurate, which may further increase manufacturing costs. 
   Circuit board  340  may include one or more conductive pads (e.g., copper pads) placed underneath dome  310  to ensure that dome assembly  300  provides an electrical signal when dome  310  is actuated. For example, circuit board  340  may include center pad  344  and outer pad  346 . Center pad  344  may be separated from outer pad  346  by non-conductive region  348 . The walls of dome  310  may be positioned over outer pad  346  such that an electrically conductive path exists between outer pad  346  and dome  310 . In some embodiments, dome  310  may cover center pad  344  in its entirety, and cover only a portion of outer pad  346  (e.g., a portion of outer pad  346  extends beyond the periphery of dome  310 ). 
   To provide an input to the electronic device, a user may press dome  310  such that the inner surface of dome  310  is placed in contact with center pad  344 . When dome  310  contacts center pad  344 , an electrically conductive path passing from outer pad  346  to center pad  344  via the inner surface of dome  311  may be provided. The electronic device may detect that an electrical circuit between center pad  344  and outer pad  346  has been closed and perform an appropriate electronic device operation. 
   In some embodiments, switch assembly  300  may not include outer pad  346 . Instead, if tab  320  is electrically coupled to pad  342 , and if tab  320  is electrically coupled to dome  310  (e.g., if tab  320  is manufactured from the same material as dome  310  or as a single component with dome  310 ), the user may create an electrically conductive path between pad  342  and center pad  344  in response to pressing dome  310 . The electronic device may detect that an electrical circuit between pad  342  and center pad  344  has been closed and perform an appropriate electronic device operation. 
   In some embodiments, a dome may be raised to provide greater travel for the dome prior to closing the electronic device circuit.  FIG. 4  is a cross-sectional view of a dome assembly having a raised dome in accordance with one embodiment of the invention. Dome assembly  400  may include dome  410  coupled to circuit board  440 . Dome  410  may include nub  432 , for example to allow a button or other electronic device component to engage dome  410 . Dome  410  and nub  432  may be coupled to circuit board  440  using any suitable approach, including for example with an adhesive sheet, a surface-mounted tab (e.g., as described above in connection with  FIGS. 1-3 ), or any other suitable approach. 
   Circuit board  440  may include conductive center pad  444  electrically connected to an electronic device component such that the electronic device may detect when dome  410  is placed in contact with center pad  444  (e.g., and closes an electrical circuit). Circuit board  440  may include conductive outer pad  446  electrically connected to an electronic device component. Outer pad  446  may be electrically coupled to dome  410  (e.g., dome  410  is overlaid on outer pad  446 ) to form a first electrical path that may be closed by dome  410  when dome  410  is placed in contact with center pad  444 . Center pad  444  and outer pad  446  may be electrically isolated by non-conductive portion  448 . 
   To increase the travel required for dome  410  to actuate the switch, dome assembly  400  may include raised edge  450  adjacent to the wall of dome  410 . Raised edge  450  may have any suitable height, including for example a height in the range of 0.005 mm to 0.04 mm. For example, raised edge may have a height of 0.02 mm. 
   Raised edge  450  may be formed using any suitable approach. In some embodiments, raised edge may be incorporated in outer pad  446 . For example, a lithographic process may be used to add additional material (e.g., copper) to outer pad  446 . As another example, a ring of material matching the shape of the periphery of dome  410  may be coupled to circuit board  440  underneath the walls of dome  410 . The material maybe coupled to circuit board  440  using any suitable approach, including for example welding, soldering, an adhesive, tape, a mechanical fastener, or any other suitable approach. In some embodiments, the ring and the coupling mechanism may retain electrical conductivity to allow an electrical path to pass from outer pad  446  through the ring and into dome  410 . 
   If dome  410  is coupled to circuit board  440  using a conductive tab mounted to a pad of the circuit board (e.g., as shown in  FIGS. 1-3 ), outer pad  446  may not be necessary (e.g., as the pad used to couple the conductive tab may serve as the second connection for the switch electrical circuit). Raised edge  450  may then be constructed from any suitable material, and coupled to circuit board  440  using any suitable approach (e.g., including non-conductive materials and approaches). 
   In some embodiments, only one edge of the dome may be raised (e.g., by twice the amount of each side, for example by 0.04 mm instead of each side by 0.02 mm).  FIG. 5  is a cross-sectional view of a dome assembly having a raised dome on one side of the dome in accordance with one embodiment of the invention. Dome assembly  500  may include dome  510  coupled to circuit board  540  using tab  520 . To increase the height of one side of dome  510 , tab  520  may be folded over itself and plastically deformed to create height difference  552  between the side of dome  510  that includes tab  520  and the opposite side of dome  510 . The height difference may change the force required to actuate the switch and improve the user&#39;s experience. 
   The above described embodiments of the invention are presented for purposes of illustration and not of limitation, and the present invention is limited only by the claims which follow.

Metadata:
Filing Date: 20080730
Publication Date: 20090707
Grant Date: 20090707
Priority Date: 20080730
Inventors: CROOIJMANS WILHELMUS M. C.
PREST CHRISTOPHER D.
Assignee: APPLE INC
CPC Classifications: [{"code": "H01H13/85", "inventive": true, "first": true, "tree": "[]"}, {"code": "H01H2205/024", "inventive": false, "first": false, "tree": "[]"}, {"code": "H01H2215/036", "inventive": false, "first": false, "tree": "[]"}, {"code": "H01H13/48", "inventive": false, "first": false, "tree": "[]"}, {"code": "H01H2215/004", "inventive": false, "first": false, "tree": "[]"}, {"code": "H01H2205/024", "inventive": false, "first": false, "tree": "[]"}, {"code": "H01H2215/004", "inventive": false, "first": false, "tree": "[]"}, {"code": "H01H13/85", "inventive": true, "first": true, "tree": "[]"}, {"code": "H01H13/48", "inventive": false, "first": false, "tree": "[]"}, {"code": "H01H2215/036", "inventive": false, "first": false, "tree": "[]"}]
Family ID: 40811002