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Patent Assignment Assignor Details

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Assignor Name : CATALYST RESEARCH CORPORATION

Total Assignments: 3

Assignment: 1

Reel/Frame:	004278/0044			Pages:	5
		Recorded:	06/22/1984
Conveyance:	ASSIGNMENT OF ASSIGNORS INTEREST.

Assignor

CATALYST RESEARCH CORPORATION

Exec Dt:

12/30/1983

Assignee

MINE SAFETY APPLIANCES COMPANY

600 PENN CENTER BLVD.

A PA CORP.

PITTSBURGH, PENNSYLVANIA 15235

Properties

Pat #	Pub #	Intl #	App #	Pat #	Pub #	Intl #	App #	Pat #	Pub #	Intl #	App #
3575714	NONE		03372872	4034143	NONE		04010798	3897731	NONE		04149483
4002498	NONE		04182714	3305393	NONE		04236512	3332801	NONE		04323079
3981222	NONE		04356187	4041217	NONE		04378489	4054724	NONE		04481445
3424621	NONE		04517258	3445291	NONE		04565078	3447970	NONE		04612933
4053337	NONE		04665191	3563178	NONE		04800572	3542402	NONE		04824017
3639773	NONE		05021344	3665859	NONE		05040156	3660163	NONE		05041801
4044192	NONE		05056023	3674562	NONE		05106657	3768015	NONE		05198829
3771456	NONE		05270490	3891460	NONE		05360162	3930888	NONE		05558733
4010043	NONE		05666161	4049980	NONE		05680617	4072803	NONE		05716339
4090291	NONE		05755256	4119769	NONE		05846791	4148975	NONE		05892655
4217403	NONE		05896639	4222006	NONE		05970334	4169779	NONE		05972735
4184937	NONE		05973204	4262171	NONE		06002067	4221849	NONE		06033904
4282484	NONE		06034326	4198281	NONE		06047682	4276362	NONE		06073188
4242425	NONE		06123381	4287273	NONE		06136935	4247607	NONE		06144329
4292380	NONE		06199696	4317869	NONE		06226369	RE31532	NONE		06270216
4410847	NONE		06420555	4675257	NONE		06554005	4027077	NONE		UNAVAILABLE
3972734	NONE		UNAVAILABLE

Correspondence name and address
	MINE APPLIANCE COMPANY,
	600 PENN CENTER BLVD
	PITTSBURGH, PA. 15235

Assignment: 2

Reel/Frame:	008041/0778			Pages:	8
		Recorded:	04/08/1996
Conveyance:	ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).

Assignor

CATALYST RESEARCH CORPORATION

Exec Dt:

02/02/1996

Assignee

MONTELL TECHNOLOGY COMPANY BV

HACKSTEEN 66, 2132 MS HOOFDDORP, P.O. BOX 625

2130 AP HOFDDORP, NETHERLANDS

Properties

Pat #

Pub #

Intl #

App #

Pat #

Pub #

Intl #

App #

Pat #

Pub #

Intl #

App #

5459117

NONE

08113427

5631202

NONE

08126795

6069237

NONE

08526376

Correspondence name and address
	CHAMBERLAIN, HRDLICKA, WHITE,
	WILLIAMS & MARTIN
	ROBERT W. STORZIER
	1200 SMITH ST., SUITE 1400
	HOUSTON, TX 77002-4310

Assignment: 3

Reel/Frame:	004634/0356			Pages:	2
		Recorded:	11/10/1986
Conveyance:	ASSIGNMENT OF ASSIGNORS INTEREST.

Assignor

CATALYST RESEARCH CORPORATION

Exec Dt:

00/00/0000

Assignee

MINE SAFETY APPLIANCES COMPANY, P.O. BOX 426 PITTSBURGH, PA. 15230 A PA. CORP.

Property

Pat #

Pub #

Intl #

App #

4675257

NONE

06554005

Correspondence name and address
	THOMAS C. WETTACH
	REED SMITH SHAW AND MC CLAY
	P. O. BOX 2009
	PITTSBURGH, PA 15230

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