Document:

EX-4.7

 Exhibit 4.7 

PATENT ASSIGNMENT 

This Patent Assignment is made and entered into as of July 24, 2012 by and between 

1) Boston Scientific Corporation; 

2) Boston Scientific Scimed, Inc.; and 

3) Boston Scientific Limited 

(collectively, the “Assignors”) and Medifocus, Inc. (“Assignee”) (collectively referred to as the
“Parties”). 
 WHEREAS, the Assignors are the owners of certain intellectual property rights, including the patents and
patent applications listed on Schedule 1 attached hereto (collectively referred to herein as the “Patents”); and 

WHEREAS, for good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the Assignors desire to sell,
transfer, assign and set over unto Assignee all rights, title, and interest of the Assignors in and to the Patents. 
 NOW, THEREFORE, the
Assignors do hereby sell, assign, transfer and set over unto the Assignee, its successors and assigns, the entire and exclusive right, title and interest in and to all inventions in the United States and throughout the world (with priority rights)
in and to the Patents, and in and to any continuations, continuations-in-part, divisions, reissues, extensions and foreign counterparts of the Patents, together with all claims for damages by reason of past infringement of any Patents, with the
right to sue for and collect the same. Assignors further agree to execute and have executed all documents, instruments and papers to perform all acts, as deemed reasonably necessary by Assignee to perfect in Assignee the foregoing rights, title and
interests, including the execution of any related domestic or foreign application documents, provided that all costs and expenses associated with the recordation of assignment documents shall be born equally by Assignee and Assignor. 

This Patent Assignment may be executed simultaneously in two or more counterparts, each of which shall be deemed an original, but all of which
together shall constitute one and the same instrument. 
 [Remainder of this page intentionally left blank] 

 IN WITNESS WHEREOF, the undersigned has caused this Patent Assignment to be duly executed and
delivered as of the date first written above. 
  

			
	ASSIGNORS:
	
	BOSTON SCIENTIFIC CORPORATION
		
	By:	 	 /s/ Thomas G. Robinson

	Thomas G. Robinson
	Vice President, Strategy and Business Development Urology and Women’s Health

  

			
	COMMONWEALTH OF MASSACHUSETTS	 	)
		 	) ss.
	COUNTY OF MIDDLESEX	 	)

 On this 23rd day of July, 2012, before me, the undersigned, a Notary Public in and for the
Commonwealth of Massachusetts, duly commissioned and sworn, personally appeared Thomas G. Robinson, to me known to be the Vice President, Strategy and Business Development, Urology and Women’s Health, of Boston Scientific Corporation,
the corporation that executed the within and foregoing instrument, and acknowledged said instrument to be free and voluntary deed of said corporation for the uses and the purposes therein mentioned, and on oath stated that he was authorized to
execute said instrument. 
  

	
	 /s/ Evelyn Lewis

	(Signature of Notary)
	
	 Evelyn Lewis

	(Legibly Print or Stamp Name of Notary)

			
	
	Notary public in and for the Commonwealth of Massachusetts,
		
	residing at	 	 Worcester

			
		
	My appointment expires	 	 July 16, 2015

		
	Acting in the County of:	 	 Middlesex

 [Signature Page to Patent Assignment] 

 
			
	BOSTON SCIENTIFIC SCIMED, INC.
		
	By:	 	 /s/ Vance R. Brown

	Vance R. Brown
	Vice President and Secretary

  

			
	COMMONWEALTH OF MASSACHUSETTS	 	)
		 	) ss.
	COUNTY OF Middlesex	 	)

 On this 20th day of July, 2012, before me, the undersigned, a Notary Public in and for the
Commonwealth of Massachusetts, duly commissioned and sworn, personally appeared Vance R. Brown, to me known to be the Vice President and Secretary of Boston Scientific Scimed, Inc., the corporation that executed the within and foregoing
instrument, and acknowledged said instrument to be free and voluntary deed of said corporation for the uses and the purposes therein mentioned, and on oath stated that he was authorized to execute said instrument. 

 

	
	 /s/ Patricia A. Shea

	(Signature of Notary)
	
	 Patricia A. Shea

	(Legibly Print or Stamp Name of Notary)

  

			
	Notary public in and for the Commonwealth of Massachusetts,
		
	residing at	 	 Shrewsbury, MA

			
		
	My appointment expires	 	 July 6, 2018

		
	Acting in the County of:	 	 Middlesex

 [Signature Page to Patent Assignment] 

 
			
	BOSTON SCIENTIFIC LIMITED
		
	By:	 	 /s/ Vance R. Brown

	Vance R. Brown
	Vice President and Secretary

  

			
	COMMONWEALTH OF MASSACHUSETTS	 	)
		 	) ss.
	COUNTY OF Middlesex	 	)

 On this 20th day of July, 2012, before me, the undersigned, a Notary Public in and for the
Commonwealth of Massachusetts, duly commissioned and sworn, personally appeared Vance R. Brown, to me known to be the Vice President and Secretary of Boston Scientific Limited, the corporation that executed the within and foregoing
instrument, and acknowledged said instrument to be free and voluntary deed of said corporation for the uses and the purposes therein mentioned, and on oath stated that he was authorized to execute said instrument. 

 

	
	 /s/ Patricia A. Shea

	(Signature of Notary)
	
	 Patricia A. Shea

	(Legibly Print or Stamp Name of Notary)

  

			
	Notary public in and for the Commonwealth of Massachusetts,
		
	residing at	 	 Shrewsbury, MA

			
		
	My appointment expires	 	 July 6, 2018

		
	Acting in the County of:	 	 Middlesex

 [Signature Page to Patent Assignment] 

 
			
	ASSIGNEE:
	
	MEDIFOCUS, INC.
		
	By:	 	 /s/ Augustine Y. Cheung, Ph.D.

	Augustine Y. Cheung, Ph.D.
	Chief Executive Officer
	
	[Notary block]

  

					
	
	 /s/ Patricia N. Armiger

	(Signature of Notary)
	
	 Patricia N. Armiger

	(Legibly Print or Stamp Name of Notary)
	
	Notary public in and for the State of Maryland,

			
		
	My appointment expires	 	 May 1, 2014

		
	Acting in the County of:	 	 Anne Arundel

 [Signature Page to Patent Assignment] 

 Schedule 1 

Assigned Patents and Patent Applications 
  

											
	 Country
	  	 Serial No.
	  	 Filing Date
	  	 Application Status
	  	 Patent/Publication No.
	  	 Owner

	United States	  	10/264969	  	10/4/2002	  	Granted	  	6,895,282	  	Boston Scientific Scimed, Inc.
	PCT	  	US03/31296	  	10/03/2003	  	NAT PHASE	  	 WO
 2004/033037
	  	Boston Scientific Limited
	Australia	  	2003272824	  	10/03/2003	  	Abandoned	  		  	Boston Scientific Limited
	Canada	  	2498769	  	10/03/2003	  	Abandoned	  		  	Boston Scientific Limited
	Europe	  	03755026.6	  	10/03/2003	  	Abandoned	  		  	Boston Scientific Limited
						
	United States	  	11/100138	  	4/5/2005	  	Pending	  	2005-0251126	  	Boston Scientific Scimed, Inc.
						
	United States	  	11/246936	  	10/6/2005	  	Pending	  	2007-0093880 (8,123,705)	  	Boston Scientific Scimed, Inc.
	PCT	  	US06/30100	  	7/31/2006	  	NAT PHASE	  	 WO
 2007/044114
	  	Boston Scientific Limited
	Europe	  	EP06824797	  		  	Withdrawn	  		  	Boston Scientific Limited
						
	United States	  	61/017297	  	12/28/2007	  	converted	  		  	Boston Scientific Scimed, Inc.
	United States	  	12/342959	  	12/23/2008	  	Pending	  	2009-0171238	  	Boston Scientific Scimed, Inc.
						
	United States	  	60/977878	  	10/5/2007	  	converted	  		  	Boston Scientific Scimed, Inc.
	United States	  	12/238589	  	9/26/2008	  	Pending	  	2009-0093733	  	Boston Scientific Scimed, Inc.
	PCT	  	US08/77772	  	9/26/2008	  	Abandoned	  	 WO
 2009/045868
	  	Boston Scientific Limited
						
	United States	  	61/014535	  	12/18/2007	  	converted	  		  	Boston Scientific Scimed, Inc.
	United States	  	12/335073	  	12/15/2008	  	Pending	  	2009-0157070	  	Boston Scientific Scimed, Inc.
	United States	  	09/597234	  	6/20/2000	  	Granted	  	6,477,426	  	Boston Scientific Corporation
	PCT	  	US01/19689	  	6/20/2001	  	NAT PHASE	  	 WO
 2001/098764
	  	Boston Scientific Corporation
	Canada	  	2408627	  	6/20/2001	  	Pending	  	2408627	  	Boston Scientific Corporation
	China	  	01811529.2	  	6/20/2001	  	Abandoned	  	EP1292362	  	Boston Scientific Corporation

											
	 Country
	  	 Serial No.
	  	 Filing Date
	  	 Application Status
	  	 Patent/Publication No.
	  	 Owner

	Europe	  	01948516.8	  	6/20/2001	  	Granted	  	EP1292362	  	Boston Scientific Corporation
	Spain	  	01948516.8	  	6/20/2001	  	Granted	  	EP1292362	  	Boston Scientific Corporation
	Germany	  	01948516.8	  	6/20/2001	  	Granted	  	EP1292362	  	Boston Scientific Corporation
	France	  	01948516.8	  	6/20/2001	  	Granted	  	EP1292362	  	Boston Scientific Corporation
	United Kingdom	  	01948516.8	  	6/20/2001	  	Granted	  	EP1292362	  	Boston Scientific Corporation
	Ireland	  	01948516.8	  	6/20/2001	  	Granted	  	EP1292362	  	Boston Scientific Corporation
	Italy	  	01948516.8	  	6/20/2001	  	Granted	  	EP1292362	  	Boston Scientific Corporation
	India	  	IN/PCT/2002/01362	  	6/20/2001	  	Abandoned	  		  	Boston Scientific Corporation
	Japan	  	2002-504476	  	6/20/2001	  	Granted	  	JP 4503229	  	Boston Scientific Corporation
	Mexico	  	PA/a/2002/012687	  	6/20/2001	  	Granted	  	MX 227252	  	Boston Scientific Corporation
	Hong Kong	  	03106147.6	  	6/20/2001	  	Abandoned	  		  	Boston Scientific Corporation
						
	United States	  	10/247747	  	9/20/2002	  	Granted	  	2003-0069619 (6,788,977)	  	Boston Scientific Corporation
	PCT	  	US03/28898	  	9/16/2003	  	NAT PHASE	  	 WO
 2004/026098
	  	Boston Scientific Corporation
	Canada	  	2498166	  	9/16/2003	  	Pending	  		  	Boston Scientific Corporation
	China	  	03822401.1	  	9/16/2003	  	Abandoned	  		  	Boston Scientific Corporation
	Europe	  	03749674.2	  	9/16/2003	  	Published	  	EP1555955	  	Boston Scientific Corporation
	Hong Kong	  	06101085.8	  	9/16/2003	  	Abandoned	  		  	Boston Scientific Corporation
	India	  	551/KOLNP/2005	  	9/16/2003	  	Abandoned	  		  	Boston Scientific Corporation
	Japan	  	2004-534347	  	9/16/2003	  	Granted	  	JP 4559860	  	Boston Scientific Corporation
	Mexico	  	PA/a/2005/003015	  	9/16/2003	  	Abandoned	  		  	Boston Scientific Corporation
						
	United States	  	10/436500	  	05/13/2003	  	Granted	  	7,837,720	  	Boston Scientific Corporation
	PCT	  	US04/14768	  	5/11/2004	  	NAT PHASE	  	 WO
 2005/007000
	  	Boston Scientific Corporation
	Canada	  	2524901	  	5/11/2004	  	Pending	  		  	Boston Scientific Corporation
	China	  	200480013080.9	  	5/11/2004	  	Abandoned	  		  	Boston Scientific Corporation

											
	 Country
	  	 Serial No.
	  	 Filing Date
	  	 Application Status
	  	 Patent/Publication No.
	  	 Owner

	Europe	  	04775978.2	  	5/11/2004	  	Granted	  	EP1622531B1	  	Boston Scientific Corporation
	Germany	  	04775978.2	  	5/11/2004	  	Granted	  	EP1622531B1	  	Boston Scientific Corporation
	France	  	04775978.2	  	5/11/2004	  	Granted	  	EP1622531B1	  	Boston Scientific Corporation
	United Kingdom	  	04775978.2	  	5/11/2004	  	Granted	  	EP1622531B1	  	Boston Scientific Corporation
	Ireland	  	04775978.2	  	5/11/2004	  	Granted	  	EP1622531B1	  	Boston Scientific Corporation
	Italy	  	04775978.2	  	5/11/2004	  	Granted	  	EP1622531B1	  	Boston Scientific Corporation
	Hong Kong	  	06108315.5	  	5/11/2004	  	Abandoned	  	1087904A	  	Boston Scientific Corporation
	India	  	2482/KOLNP/2005	  	5/11/2004	  	Abandoned	  		  	Boston Scientific Corporation
	Japan	  	2006-532966	  	5/11/2004	  	Granted	  	JP 4568283	  	Boston Scientific Corporation
	Mexico	  	PA/a/2005/012161	  	5/11/2004	  	Abandoned	  		  	Boston Scientific Corporation
						
	United States	  	12/902636	  	10/12/2010	  	Pending	  	2011-0028886	  	Boston Scientific Corporation
	Europe	  	06000041.1	  	06/20/2001	  	Granted	  	EP1647305B1	  	Boston Scientific Corporation
	Germany	  	60143775.6	  	06/20/2001	  	Granted	  	EP1647305B1	  	Boston Scientific Corporation
	France	  	06000041.1	  	06/20/2001	  	Granted	  	EP1647305B1	  	Boston Scientific Corporation
	Great Britain	  	06000041.1	  	06/20/2001	  	Granted	  	EP1647305B1	  	Boston Scientific Corporation
	Ireland	  	06000041.1	  	06/20/2001	  	Granted	  	EP1647305B1	  	Boston Scientific Corporation
	Italy	  	06000041.1	  	06/20/2001	  	Granted	  	EP1647305B1	  	Boston Scientific Corporation
	Hong Kong	  	06110990.3	  	06/20/2001	  	Abandoned	  		  	Boston Scientific Corporation
						
	Europe	  	10179144.0	  	06/20/2001	  	Pending	  		  	Boston Scientific Corporation
						
	United States	  	60/664699	  	3/24/2005	  	converted	  		  	Boston Scientific Corporation
	United States	  	11/280199	  	11/17/2005	  	Pending	  	2006-0216275	  	Boston Scientific Corporation
	PCT	  	US06/10505	  	3/22/2006	  	NAT PHASE	  	 WO
 2006/102471
	  	Boston Scientific Corporation
	Canada	  	2602065	  	3/22/2006	  	Pending	  		  	Boston Scientific Corporation
	Europe	  	6739341.3	  	3/22/2006	  	Pending	  		  	Boston Scientific Corporation

											
	 Country
	  	 Serial No.
	  	 Filing Date
	  	 Application Status
	  	 Patent/Publication No.
	  	 Owner

	United States	  	11/527688	  	9/27/2006	  	Pending	  	2007-0077230	  	Boston Scientific Corporation
	PCT	  	US06/37569	  	9/27/2006	  	NAT PHASE	  	 WO
 2008/039188
	  	Boston Scientific Corporation
	Europe	  	06815516.7	  	9/27/2006	  	Pending	  		  	Boston Scientific Corporation
						
	United States	  	09/954194	  	9/18/2001	  	Granted	  	6,958,075	  	Boston Scientific Corporation
	PCT	  	US02/29048	  		  	NAT PHASE	  	 WO
 2003/028572
	  	Boston Scientific Corporation
	Europe	  	02800330.9	  		  	Granted	  	EP1435868B1	  	Boston Scientific Corporation
	Austria	  	02800330.9	  		  	Abandoned	  	EP1435868B1	  	Boston Scientific Corporation
	Belgium	  	02800330.9	  		  	Granted	  	EP1435868B1	  	Boston Scientific Corporation
	Germany	  	02800330.9	  		  	Granted	  	EP1435868B1	  	Boston Scientific Corporation
	Denmark	  	02800330.9	  		  	Abandoned	  	EP1435868B1	  	Boston Scientific Corporation
	Spain	  	02800330.9	  		  	Abandoned	  	EP1435868B1	  	Boston Scientific Corporation
	Finland	  	02800330.9	  		  	Abandoned	  	EP1435868B1	  	Boston Scientific Corporation
	France	  	02800330.9	  		  	Granted	  	EP1435868B1	  	Boston Scientific Corporation
	United Kingdom	  	02800330.9	  		  	Granted	  	EP1435868B1	  	Boston Scientific Corporation
	Italy	  	02800330.9	  		  	Granted	  	EP1435868B1	  	Boston Scientific Corporation
	Netherlands	  	02800330.9	  		  	Granted	  	EP1435868B1	  	Boston Scientific Corporation
	Sweden	  	02800330.9	  		  	Granted	  	EP1435868B1	  	Boston Scientific Corporation
	Canada	  	2460907	  		  	Pending	  	2460907	  	Boston Scientific Corporation
	China	  	02142696.1	  		  	Abandoned	  		  	Boston Scientific Corporation
	Hong Kong	  	05100145.9	  		  	Abandoned	  		  	Boston Scientific Corporation
	India	  	378/KOLNP/2004	  		  	Abandoned	  		  	Boston Scientific Corporation
	Japan	  	2003-531912	  		  	Granted	  	JP 4292259	  	Boston Scientific Corporation
	Mexico	  	PA/a/2004/002564	  		  	Abandoned	  		  	Boston Scientific Corporation
						
	United States	  	10/879288	  	6/30/2004	  	Granted	  	7,811,313	  	Boston Scientific Corporation

											
	 Country
	  	 Serial No.
	  	 Filing Date
	  	 Application Status
	  	 Patent/Publication No.
	  	 Owner

	United States	  	12/849458	  	8/3/2010	  	Pending	  	2010-0298913	  	Boston Scientific Corporation
						
	United States	  	60/356750	  	2/15/2002	  	converted	  		  	Boston Scientific Corporation
	United States	  	10/504302	  	2/19/2003	  	Granted	  	7,833,220	  	Boston Scientific Corporation
	PCT	  	US03/04512	  	2/19/2003	  	NAT PHASE	  	 WO
 2003/070298
	  	Boston Scientific Corporation
	Canada	  	2476078	  	2/19/2003	  	Pending	  		  	Boston Scientific Corporation
	China	  	03804947.3	  	2/19/2003	  	Abandoned	  		  	Boston Scientific Corporation
	Europe	  	03742756.4	  	2/19/2003	  	Pending	  		  	Boston Scientific Corporation
	Hong Kong	  	05105400.8	  	2/19/2003	  	Abandoned	  		  	Boston Scientific Corporation
	India	  	1164/KOLNP/2004	  	2/19/2003	  	Abandoned	  		  	Boston Scientific Corporation
	Japan	  	2003-569251	  	2/19/2003	  	Granted	  	JP 4362373	  	Boston Scientific Corporation
	Mexico	  	PA/a/2004/007897	  	2/19/2003	  	Abandoned	  		  	Boston Scientific Corporation
						
	United States	  	12/902858	  	10/12/2010	  	Pending	  	2011-0034976	  	Boston Scientific CorporationEX-4.8

 Exhibit 4.8 

TRADEMARK ASSIGNMENT 

This Trademark Assignment is made and entered into as of July 20, 2012 by and between Boston Scientific Scimed, Inc.
(“Assignor”) and Medifocus, Inc. (“Assignee”) (collectively referred to as the “Parties”). 

WHEREAS, the Assignor is the owner of certain intellectual property rights, including the trademarks listed on Schedule 1 attached
hereto and all goodwill of any business associated and connected therewith or symbolized thereby (collectively referred to herein as the “Trademarks”); and 

WHEREAS, for good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the Assignor desires to sell,
transfer, assign and set over unto Assignee all rights, title, and interest of the Assignor in and to the Trademarks. 
 NOW, THEREFORE, the
Assignor does hereby sell, assign, transfer and set over unto the Assignee, its successors and assigns, the entire and exclusive right, title and interest in and to the Trademarks including all proceeds therefrom and the right to bring an action at
law or in equity for any infringement, dilution or violation of any of the Trademarks occurring prior to the date hereof, and to collect all damages, settlements and proceeds relating to the Trademarks. Assignor further agrees to execute and have
executed all documents, instruments and papers to perform all acts, as deemed reasonably necessary by Assignee to perfect in Assignee the foregoing rights, title and interests, including the execution of any related domestic or foreign application
documents, provided that all costs and expenses associated with the recordation of assignment documents shall be born equally by Assignee and Assignor. 

Notwithstanding anything to the contrary contained herein, the Trademarks shall not include any trademark application that would be deemed
invalidated, canceled or abandoned due to the contribution, assignment and/or conveyance of the Trademarks hereunder, including without limitation all United States trademark applications that are based on an intent-to-use, unless and until such
time that the contribution, assignment and/or conveyance will not cause the invalidation, cancellation or abandonment of such trademark application. 

This Trademark Assignment may be executed simultaneously in two or more counterparts, each of which shall be deemed an original, but all of
which together shall constitute one and the same instrument. 
 [Remainder of this page intentionally left blank] 

 IN WITNESS WHEREOF, the undersigned has caused this Trademark Assignment to be duly executed and
delivered as of the date first written above. 
  

			
	ASSIGNOR:
	
	BOSTON SCIENTIFIC SCIMED, INC.
		
	By:	 	 /s/ Vance R. Brown

	Vance R. Brown
	Vice President and Secretary

  

			
	COMMONWEALTH OF MASSACHUSETTS	 	)
		 	) ss.
	COUNTY OF MIDDLESEX	 	)

 On this 20th day of July, 2012, before me,
the undersigned, a Notary Public in and for the Commonwealth of Massachusetts, duly commissioned and sworn, personally appeared Vance R. Brown, to me known to be the Vice President and Secretary of Boston Scientific Scimed, Inc., the
corporation that executed the within and foregoing instrument, and acknowledged said instrument to be free and voluntary deed of said corporation for the uses and the purposes therein mentioned, and on oath stated that he was authorized to execute
said instrument. 
  

	
	 /s/ Patricia A. Shea

	(Signature of Notary)
	
	 Patricia A. Shea

	(Legibly Print or Stamp Name of Notary)

  

			
	
	Notary public in and for the Commonwealth of Massachusetts,
		
	residing at	 	 Shrewsbury, MA

			
		
	My appointment expires	 	 July 6, 2018

		
	Acting in the County of:	 	 Middlesex

 [Signature Page to Patent Assignment] 

 
					
		 	ASSIGNEE:
		
		 	MEDIFOCUS, INC.
			
		 	By:	 	 /s/ Augustine Y. Cheung

		 	Augustine Y. Cheung, Ph.D.
		 	Chief Executive Officer
		
		 	[Notary block]

  

	
	 /s/ Patricia N. Armiger

	(Signature of Notary)
	
	 Patricia N. Armiger

	(Legibly Print or Stamp Name of Notary)

  

			
	
	Notary public in and for the State of Maryland,

			
		
	My appointment expires	 	 May 1, 2014

		
	Acting in the County of:	 	 Anne Arundel

 Trademark Assignment Signature Page 

 Schedule 1 

Assigned US Trademarks 
 Registration No.:
3055964 
 Serial No.: 76/563,240 
 Full Trademark Name:
PROLIEVE 
 Docket No.: 07-TM0226 
 Filing Date: 12/4/2003 

Registration Date: 1/31/2006

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