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Patent Assignment Assignor Details

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Assignor Name : DTM CORPORATION

Total Assignments: 3

Assignment: 1

Reel/Frame:	010024/0393			Pages:	35
		Recorded:	06/11/1999
Conveyance:	SECURITY INTEREST (SEE DOCUMENT FOR DETAILS).

Assignor

1

DTM CORPORATION

Exec Dt:

02/11/1998

Assignee

1

SILICON VALLEY FINANCIAL SERVICES

3003 TASMAN DRIVE

SANTA CLARA, CALIFORNIA 95054

Properties

	Pat #	Pub #	Intl #	App #		Pat #	Pub #	Intl #	App #		Pat #	Pub #	Intl #	App #
	4247508	NONE		06099333		4863538	NONE		06920580		4938816	NONE		07402693
	4944817	NONE		07402694		5132143	NONE		07541788		5017753	NONE		07545142
	5053090	NONE		07547857		5076869	NONE		07559338		5155324	NONE		07611025
	5155321	NONE		07611309		5156697	NONE		07624419		5147587	NONE		07657151
	5182170	NONE		07692172		5252264	NONE		07789358		5316580	NONE		07911879
	5296062	NONE		07951349		5304329	NONE		07980003		5342919	NONE		07980004
	5430666	NONE		07992559		5352405	NONE		07992926		5385780	NONE		08091631
	5382308	NONE		08215265		5597589	NONE		08251609		5527877	NONE		08298076
	5616294	NONE		08478272		5639070	NONE		08484125		5733497	NONE		08527840
	5749041	NONE		08542977		5640667	NONE		08563220		5817206	NONE		08597805
	5648450	NONE		08664356

Correspondence name and address
	LEVY, SMALL & LALLAS
	SEBASTIAN CAMUA
	815 MORAGA DRIVE
	LOS ANGELES, CA 90049

Assignment: 2

Reel/Frame:	010043/0704			Pages:	39
		Recorded:	06/24/1999
Conveyance:	SECURITY AGREEMENT

Assignor

1

DTM CORPORATION

Exec Dt:

06/08/1999

Assignee

1

SILICON VALLEY BANK

3003 TASMAN DRIVE

SANTA CLARA, CALIFORNIA 95054

Properties

	Pat #	Pub #	Intl #	App #		Pat #	Pub #	Intl #	App #		Pat #	Pub #	Intl #	App #
	4247508	NONE		06099333		4863538	NONE		06920580		4938816	NONE		07402693
	4944817	NONE		07402694		5132143	NONE		07541788		5017753	NONE		07545142
	5053090	NONE		07547857		5076869	NONE		07559338		5155324	NONE		07611025
	5155321	NONE		07611309		5156697	NONE		07624419		5147587	NONE		07657151
	5182170	NONE		07692172		5252264	NONE		07789358		5316580	NONE		07911879
	5296062	NONE		07951349		5304329	NONE		07980003		5342919	NONE		07980004
	5430666	NONE		07992559		5352405	NONE		07992926		5385780	NONE		08091631
	5382308	NONE		08215265		5597589	NONE		08251609		5527877	NONE		08298076
	5616294	NONE		08478272		5639070	NONE		08484125		5733497	NONE		08527840
	5749041	NONE		08542977		5640667	NONE		08563220		5817206	NONE		08597805
	5648450	NONE		08664356

Correspondence name and address
	LEVY, SMALL & LALLAS
	SEBASTIAN CAMUA
	815 MORAGA DRIVE
	LOS ANGELES, CA 90049

Assignment: 3

Reel/Frame:	013305/0224			Pages:	9
		Recorded:	09/20/2002
Conveyance:	MERGER (SEE DOCUMENT FOR DETAILS).

Assignor

1

DTM CORPORATION

Exec Dt:

08/29/2001

Assignee

1

3D SYSTEMS, INC.

26081 AVENUE HALL

VALENCIA, CALIFORNIA 91355

Properties

	Pat #	Pub #	Intl #	App #		Pat #	Pub #	Intl #	App #		Pat #	Pub #	Intl #	App #
	5155321	NONE		07611309		5252264	NONE		07789358		5342919	NONE		07980004
	5430666	NONE		07992559		5352405	NONE		07992926		5527877	NONE		08298076
	5733497	NONE		08527840		5749041	NONE		08542977		5817206	NONE		08597805
	5648450	NONE		08664356		5990268	NONE		08754746		6085122	NONE		08866600
	6136948	NONE		08892583		6151345	NONE		09111392

Correspondence name and address
	3D SYSTEMS, INC.
	RALPH D'ALESSANDRO
	26081 AVENUE HALL
	VALENCIA, CA 91355

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