USPTO Assignments on the Web

	United States Patent and Trademark Office
	Home\|Site Index\|Search\|Guides\|Contacts\|eBusiness\|eBiz alerts\|News\|Help

Assignments on the Web > Patent Query

Patent Assignment Assignor Details

NOTE:Results display only for issued patents and published applications. For pending or abandoned applications please consult USPTO staff.

Assignor Name : GUEMBEL, HELMUT

Total Assignments: 11

Assignment: 1

Reel/Frame:	006273/0541			Pages:	2
		Recorded:	09/30/1992
Conveyance:	ASSIGNMENT OF ASSIGNORS INTEREST.

Assignors

1

GUEMBEL, HELMUT

Exec Dt:

10/24/1990

2

Exec Dt:

10/24/1990

3

SPERLING-VIETMEIER, KARIN

Exec Dt:

10/24/1990

4

Exec Dt:

10/24/1990

Assignee

1

BASF AKTIENGESELLSCHAFT

6700 LUDWIGSHAFEN, RHEINLAND-PFALZ, FEDERAL REPUBLIC OF GERMANY

GERMANY

Property

Pat #

Pub #

Intl #

App #

NONE

07608844

Correspondence name and address
	OBLON, SPIVAK, MCCLELLAND,
	MAIER & NEUSTADT, P.C.
	ROBERT F. GNUSE
	1755 JEFFERSON DAVIS HWY., 4TH FLOOR
	ARLINGTON, VA 22202

Assignment: 2

Reel/Frame:	006325/0445			Pages:	2
		Recorded:	01/26/1993
Conveyance:	ASSIGNMENT OF ASSIGNORS INTEREST.

Assignors

1

Exec Dt:

04/07/1992

2

GUEMBEL, HELMUT

Exec Dt:

04/07/1992

3

OFTRING, ALFRED

Exec Dt:

04/07/1992

4

PERNER, JOHANNES

Exec Dt:

04/07/1992

5

Exec Dt:

04/07/1992

Assignee

1

BASF AKTIENGESELLSCHAFT

6700 LUDWIGSHAFEN, RHEINLAND-PFALZ, GERMANY

Property

Pat #

Pub #

Intl #

App #

NONE

07871093

Correspondence name and address
	C. IRVIN MCCLELLAND
	OBLON, SPIVAK, MCCLELLAND, MAIER. ET AL
	1755 JEFFERSON DAVIS HIGHWAY
	FOURTH FLOOR
	ARLINGTON, VA 22202

Assignment: 3

Reel/Frame:	007615/0480			Pages:	2
		Recorded:	06/21/1995
Conveyance:	ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).

Assignors

1

PERNER, JOHANNES

Exec Dt:

11/22/1993

2

Exec Dt:

11/22/1993

3

GUEMBEL, HELMUT

Exec Dt:

11/22/1993

4

DENZINGER, WALTER

Exec Dt:

11/22/1993

5

HARTMANN, HEINRICH

Exec Dt:

11/22/1993

6

KRONER, MATTHIAS

Exec Dt:

11/22/1993

Assignee

1

BASF AKTIENGESELLSCHAFT

67056 LUDWIGSHAFEN, GERMANY

Property

Pat #

Pub #

Intl #

App #

NONE

08424486

Correspondence name and address
	OBLON, SPIVAK, MCCLELLAND, MAIER
	& NEUSTADT, P.C. - TIMOTHY R. SCHWARTZ
	FOURTH FLOOR
	1755 JEFFERSON DAVIS HIGHWAY
	ARLINGTON, VIRGINIA 22202

Assignment: 4

Reel/Frame:	010161/0064			Pages:	2
		Recorded:	08/12/1999
Conveyance:	ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).

Assignors

1

Exec Dt:

06/16/1997

2

GUEMBEL, HELMUT

Exec Dt:

06/16/1997

3

KAHEMEN, MARTIN AUS DEM

Exec Dt:

06/16/1997

4

BERKHART, BERNARD

Exec Dt:

06/16/1997

5

Exec Dt:

06/16/1997

Assignee

1

BASF AKTIENGESELLSCHAFT

67056 LUDWIGSHAFEN, GERMANY

Property

Pat #

Pub #

Intl #

App #

NONE

09194423

Correspondence name and address
	OBLON, SPIVAK, MCCLELLAND ET AL
	ATTN: GEORGE F. LESMES
	ATTORNEY AT LAW, FOURTH FLOOR
	1755 JEFFERSON DAVIS HIGHWAY
	ARLINGTON, VA 22202

Assignment: 5

Reel/Frame:	010789/0699			Pages:	2
		Recorded:	05/03/2000
Conveyance:	CORRECTED RECORDATION FORM COVER SHEET, REEL/FRAME 010161/0064, BAR CODE NUMBER 101118802A, TO CORRECT THE 3RD ASSIGNOR'S NAME, AND TO ADD THE ASSIGNOR.

Assignors

1

Exec Dt:

06/16/1997

2

GUEMBEL, HELMUT

Exec Dt:

06/16/1997

3

BURKHART, BERND

Exec Dt:

06/16/1997

4

DEM KAHMEN, MARTIN AUS

Exec Dt:

06/16/1997

5

Exec Dt:

06/16/1997

6

Exec Dt:

06/16/1997

Assignee

1

BASF AKTIENGESELLSCHAFT

67056 LUDWIGSHAFEN, GERMANY

Property

Pat #

Pub #

Intl #

App #

NONE

09194423

Correspondence name and address
	OBLON, SPIVAK, MCCLELLAND, MAIER, ET AL.
	NORMAN F. OBLON
	1755 JEFFERSON DAVIS HWY.
	ARLINGTON, VA 22202

Assignment: 6

Reel/Frame:	013454/0915			Pages:	3
		Recorded:	11/01/2002
Conveyance:	ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).

Assignors

1

GUEMBEL, HELMUT

Exec Dt:

08/26/2002

2

KAHMEN, MARTIN AUS DEM

Exec Dt:

08/26/2002

3

WAGNER, NORBERT

Exec Dt:

08/26/2002

4

Exec Dt:

08/26/2002

Assignee

1

BASF AKTIENGESELLSCHAFT

LUDWIGSHAFEN, GERMAN DEMOCRATIC REPUBLIC 67056

Property

Pat #

Pub #

Intl #

App #

10239884

Correspondence name and address
	OBLON, SPIVAK, MCCLELLAND ET AL
	NORMAN OBLON
	1940 DUKE STREET
	ARLINGTON, VA 22314

Assignment: 7

Reel/Frame:	016355/0984			Pages:	3
		Recorded:	08/03/2004
Conveyance:	ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).

Assignors

1

GUEMBEL, HELMUT

Exec Dt:

03/24/2003

2

KNEUPER, HEINZ-JOSEF

Exec Dt:

03/24/2003

3

Exec Dt:

03/24/2003

4

BERTLEIN, GERHARD

Exec Dt:

03/24/2003

5

DROEGEMUELLER, MICHAEL

Exec Dt:

03/24/2003

Assignee

1

BASF AKTIENGESELLSCHAFT

67056 LUDWIGSHAFEN, GERMANY

Property

Pat #

Pub #

Intl #

App #

10503305

Correspondence name and address
	HERBERT B. KEIL
	KEIL & WEINKAUF
	1350 CONNECTICUT AVENUE, N.W.
	WASHINGTON, DC 20036

Assignment: 8

Reel/Frame:	015871/0293			Pages:	3
		Recorded:	10/06/2004
Conveyance:	ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).

Assignors

1

NOERENBERG, RALF

Exec Dt:

04/27/2004

2

OETTER, GUENTER

Exec Dt:

04/27/2004

3

TROPSCH, JUERGEN

Exec Dt:

04/27/2004

4

GUEMBEL, HELMUT

Exec Dt:

04/27/2004

5

LICHTERFELD-WEBER, NICOLE

Exec Dt:

04/27/2004

6

KROENER, HUBERTUS

Exec Dt:

04/27/2004

7

SEELMANN-EGGEBERT, HANS-PETER

Exec Dt:

04/27/2004

Assignee

1

BASF AKTIENGESELLSCHAFT

67056 LUDWIGSHAFEN, GERMANY

Property

Pat #

Pub #

Intl #

App #

NONE

10500889

Correspondence name and address
	OBLON, SPIVAK, MCCLELLAND, MAIER & NEUST
	1940 DUKE STREET
	ALEXANDRIA, VA 22314

Assignment: 9

Reel/Frame:	020429/0365			Pages:	4
		Recorded:	01/29/2008
Attorney Dkt #:	286634US0PCT
Conveyance:	ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).

Assignors

1

KLUEGLEIN, MATTHIAS

Exec Dt:

10/06/2004

2

LEHMANN, BERNHARD

Exec Dt:

10/06/2004

3

HUEFFER, STEPHAN

Exec Dt:

10/06/2004

4

GOFFING, FRIEDRICH

Exec Dt:

10/06/2004

5

SCHNEIDER, TANJA

Exec Dt:

10/06/2004

6

GUEMBEL, HELMUT

Exec Dt:

10/06/2004

Assignee

1

BASF AKTIENGESELLSCHAFT

.

LUDWIGSHAFEN, GERMANY 67056

Property

Pat #

Pub #

Intl #

App #

NONE

10572093

Correspondence name and address
	OBLON, SPIVAK, ET AL.
	1940 DUKE STREET
	ALEXANDRIA, VA 22314

Assignment: 10

Reel/Frame:	020736/0212			Pages:	3
		Recorded:	04/01/2008
Attorney Dkt #:	323769US0PCT
Conveyance:	ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).

Assignors

1

Exec Dt:

10/04/2006

2

GUEMBEL, HELMUT

Exec Dt:

10/23/2006

Assignee

1

BASF AKTIENGESELLSCHAFT

.

LUDWIGSHAFEN, GERMANY 67056

Property

Pat #

Pub #

Intl #

App #

12088891

Correspondence name and address
	OBLON, SPIVAK, ET AL.
	1940 DUKE STREET
	ALEXANDRIA, VA 22314

Assignment: 11

Reel/Frame:	020799/0060			Pages:	3
		Recorded:	04/14/2008
Attorney Dkt #:	324705US0PCT
Conveyance:	ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).

Assignors

1

Exec Dt:

02/13/2007

2

GUEMBEL, HELMUT

Exec Dt:

02/16/2007

Assignee

1

BASF AKTIENGESELLSCHAFT

.

LUDWIGSHAFEN, GERMANY 67056

Property

Pat #

Pub #

Intl #

App #

NONE

12090170

Correspondence name and address
	OBLON, SPIVAK, ET AL.
	1940 DUKE STREET
	ALEXANDRIA, VA 22314

Search Results as of: 05/13/2024 05:59 AM

If you have any comments or questions concerning the data displayed, contact PRD / Assignments at 571-272-3350. v.2.6

Web interface last modified: August 25, 2017 v.2.6

| .HOME | INDEX| SEARCH | eBUSINESS | CONTACT US | PRIVACY STATEMENT