Exhibit 

4

Case 9:22-cv-80805-DMM Document 1-4 Entered on FLSD Docket 06/01/2022 Page 1 of 10
1

U.S. Patent No. RE 48,794 Claim Chart

Claim Language Accused Product

1 A charger plug capable of connecting with 

a two or three receptacle power source to 

convert 120V input power received from 

the power source to DC output power,

the charger plug being electrically 

connectable to a rechargeable electronic 

device via a power cord for providing the 

DC output power thereto,

Charger plug with 

two prongs capable 

of being plugged into 

three receptacle 

power outlet. 

Two prongs

Charger plug 

connected to a USB 

power cord that 

provides output 

power using DC 

current

Case 9:22-cv-80805-DMM Document 1-4 Entered on FLSD Docket 06/01/2022 Page 2 of 10
2

Claim Language Accused Product

the charger plug including a housing,

the charger plug comprising: first and 

second separate blade members secured 

within the housing so as to have prong 

portions of the blade members positioned 

in order to extend in a first direction from a 

front wall of the housing

Charger plug’s 

housing of the 

internal circuitry 

(not pictured)

First and second blade 

members secured 

within the housing 

Front wall of 

the housing.

First direction

Case 9:22-cv-80805-DMM Document 1-4 Entered on FLSD Docket 06/01/2022 Page 3 of 10
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Claim Language Accused Product

the prong portions adapted to be received 

in the receptacle openings of the power 

source;

the charger plug including a DC connector 

having an aperture adapted to removably 

receive a corresponding power cord plug 

end for transmitting DC power to the 

rechargeable electronic device;

DC connector

aperture is for

removable USB cable 

power cord transmit 

power using DC 

current

Prongs can be 

plugged into 

power source 

Case 9:22-cv-80805-DMM Document 1-4 Entered on FLSD Docket 06/01/2022 Page 4 of 10
4

Claim Language Accused Product

the charger plug housing forming

a) a charger plug face area defined by the 

front wall

Housing 

Front wall of 

charger plug 

contains the slots 

for the prongs. 

Face area

Case 9:22-cv-80805-DMM Document 1-4 Entered on FLSD Docket 06/01/2022 Page 5 of 10
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Claim Language Accused Product

b) an outer profile defined by a perimeter 

of the front wall and defined by a plug 

body extending rearward from the front 

wall and

c) a rear end opposite the front wall;

Front wall

Outer profile

shown at an 

angle which is 

the surrounding 

area below the 

front wall

Rear end

Front wall (not pictured)

Case 9:22-cv-80805-DMM Document 1-4 Entered on FLSD Docket 06/01/2022 Page 6 of 10
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Claim Language Accused Product

the charger plug configured to be capable 

of plugging into a standard wall outlet and 

further:

i) being sized so that the charger plug 

housing comprises a longitudinal length 

extending between the front wall and the 

rear end and the longitudinal length is less 

than 2.0 inches,

Capable of 

plugging into a 

standard wall 

outlet

Front wall

1.308 inches

longitudinal length 

is less than 2.0 

inches

Rear end

Case 9:22-cv-80805-DMM Document 1-4 Entered on FLSD Docket 06/01/2022 Page 7 of 10
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Claim Language Accused Product

a width of the housing outer profile being 

less than 1.75 inches, and

ii) the outer profile having no interference 

with an adjacent receptacle of the power 

source located on all sides of the first 

receptacle when a like charger plug is 

mounted in all available orientations in any 

of the other receptacles,

1.360 inches [lateral] width 

of the housing is less than 

1.75 inches

Outer profile of 

charger plug having 

no interference with 

other similar charger 

plugs.

*Similar chargers shown for reference

Case 9:22-cv-80805-DMM Document 1-4 Entered on FLSD Docket 06/01/2022 Page 8 of 10
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Claim Language Accused Product

so that when space is limited by an 

obstacle adjacent or in front of the power 

source the charger plug is capable of being 

conveniently mounted to one of the 

receptacles,

the power cord plug end may be 

conveniently received by the DC 

connector,

The charger plug is 

mounted to a four 

wall outlet shown in 

opposite orientation, 

having no 

interference with 

bottom receptacle.

USB power cord 

inserted inside one of 

the DC connectors of 

the charger plug. 

*Similar chargers shown for reference

Case 9:22-cv-80805-DMM Document 1-4 Entered on FLSD Docket 06/01/2022 Page 9 of 10
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Claim Language Accused Product

and the power cord plug end can be 

conveniently removed from the DC 

connector while leaving the charger plug 

connected to the receptacle.

USB power cord 

removed while charger 

plug is still connected 

to four wall outlet.

Case 9:22-cv-80805-DMM Document 1-4 Entered on FLSD Docket 06/01/2022 Page 10 of 10