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Patent Assignment Assignor Details
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Assignor Name : RITTNER, SIEGBERT
Total Assignments: 18
Assignment: 1
Reel/Frame:004410/0280   Pages: 1
Recorded: 05/24/1985
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
RITTNER, SIEGBERT
Exec Dt:
04/29/1985
2
MORACH, EUGENE
Exec Dt:
04/29/1985
3
SCHINDLER, HUBERT
Exec Dt:
04/29/1985
Assignee
1
HOECHST AKTIENGESELLSCHAFT
A CORP OF GERMANY
D-6230 FRANKFURT AM MAIN 80, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4617197
NONE
06738087
Correspondence name and address
CONNOLLY AND HUTZ
P. O. BOX 2207
WILMINGTON, E 19899
Assignment: 2
Reel/Frame:004446/0566   Pages: 1
Recorded: 08/16/1985
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
BADER, ROLF
Exec Dt:
07/30/1985
2
LAST, HARTMUT
Exec Dt:
07/30/1985
3
MAYER, MANFRED
Exec Dt:
07/30/1985
4
RITTNER, SIEGBERT
Exec Dt:
07/30/1985
5
WETZEL, EDGAR
Exec Dt:
07/30/1985
Assignee
1
HOECHST AKTIENGELLSCHAFT, A CORP OF GERMANY
D-6230 FRANKFURT AM MAIN 80, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4683034
NONE
06766767
Correspondence name and address
CONNOLLY AND HUTZ
P. O. BOX 2207
WILMINGTON, DE 19899
Assignment: 3
Reel/Frame:004758/0033   Pages: 1
Recorded: 08/12/1987
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
GOSSEL, HELMUT
Exec Dt:
07/17/1987
2
KUCKERTZ, HERBERT
Exec Dt:
07/17/1987
3
RITTNER, SIEGBERT
Exec Dt:
07/17/1987
4
ROSENFELDER, JOSEF
Exec Dt:
07/17/1987
5
WOJTECH, BERNHARD
Exec Dt:
07/17/1987
Assignee
1
HOECHST AKTIENGELLSCHAFT
A CORP. OF GERMANY
D-6230 FRANKFURT AM MAIN 80, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4814518
NONE
07084483
Correspondence name and address
CONNOLLY & HUTZ
P. O. BOX 2207
WILMINGTON, DE 19899
Assignment: 4
Reel/Frame:004886/0782   Pages: 1
Recorded: 06/01/1988
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
WOJTECH, BERNHARD
Exec Dt:
05/06/1988
2
RITTNER, SIEGBERT
Exec Dt:
05/06/1988
3
REISS, HEINZ
Exec Dt:
05/06/1988
4
ZUNKER, REINHARD
Exec Dt:
05/06/1988
Assignee
1
HOECHST AKTIENGESELLSCHAFT, A CORP. OF GERMANY
D-6230 FRANKFURT AM MAIN 80, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4864065
NONE
07200838
Correspondence name and address
CONNOLLY & HUTZ
P.O. BOX 2207
WILMINGTON, DE 19899
Assignment: 5
Reel/Frame:005015/0103   Pages: 1
Recorded: 12/29/1988
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
HOROLDT, ERNST
Exec Dt:
12/05/1988
2
GRIMM, RICHARD
Exec Dt:
12/05/1988
3
RITTNER, SIEGBERT
Exec Dt:
12/05/1988
4
KUCKERTZ, HERBERT
Exec Dt:
12/05/1988
5
BILLMANN, WILFRIED
Exec Dt:
12/05/1988
Assignee
1
HOECHST AKTIENGESELLSCHAFT, A CORP. OF FED. REP. OF GERMANY
D-6230 FRANKFURT AM MAIN 80, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4923485
NONE
07291515
Correspondence name and address
CONNOLLY & HUTZ
P. O. BOX 2207
WILMINGTON, DE 19899
Assignment: 6
Reel/Frame:005002/0387   Pages: 1
Recorded: 01/12/1989
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
VON PLESSEN, HELMOLD
Exec Dt:
12/19/1988
2
RITTNER, SIEGBERT
Exec Dt:
12/19/1988
3
VOLK, HEINRICH
Exec Dt:
12/19/1988
4
WYKYPLEI, WERNER
Exec Dt:
12/19/1988
5
NEEB, RUDOLF
Exec Dt:
12/19/1988
Assignee
1
HOECHST AKTIENGESELLSCHAFT, A CORP. OF THE FED. REP. OF GERMANY
D-6230 FRANKFURT AM MAIN 80, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4916257
NONE
07296441
Correspondence name and address
CONNOLLY AND HUTZ
P. O. BOX 2207
WILMINGTON, DE 19899
Assignment: 7
Reel/Frame:005074/0508   Pages: 1
Recorded: 05/09/1989
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
VON PLESSEN, HELMOLD
Exec Dt:
04/11/1989
2
RITTNER, SIEGBERT
Exec Dt:
04/11/1989
Assignee
1
HOECHST AKTIENGESELLSCHAFT, A CORP. OF THE FED. REP. OF GERMANY
D-6230 FRANKFURT AM MAIN 80, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4925959
NONE
07349579
Correspondence name and address
CONNOLLY AND HUTZ
P. O. BOX 2207
WILMINGTON, DE 19899
Assignment: 8
Reel/Frame:005192/0987   Pages: 1
Recorded: 12/14/1989
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
VON PLESSEN, HELMOLD
Exec Dt:
11/15/1989
2
RITTNER, SIEGBERT
Exec Dt:
11/15/1989
Assignee
1
HOECHST AKTIENGESELLSCHAFT
A CORP. OF FED. REP. OF GERMANY
D-6230 FRANKFURT AM MAIN 80, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5081263
NONE
07450402
Correspondence name and address
CONNOLLY AND HUTZ
P. O. BOX 2207
WILMINGTON, DE 19899
Assignment: 9
Reel/Frame:005434/0640   Pages: 2
Recorded: 08/29/1990
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
MILDENBERGER, HILMAR
Exec Dt:
08/07/1990
2
LACHHEIN, STEPHEN
Exec Dt:
08/07/1990
3
RITTNER, SIEGBERT
Exec Dt:
08/07/1990
4
TETZLAFF, HERIBERT
Exec Dt:
08/07/1990
Assignee
1
HOECHST AKTIENGESELLSCHAFT, A CORP. OF FEDERAL REPUBLIC OF GERMANY
D-6230 FRANKFURT AM MAIN 80, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5013444
NONE
07576934
Correspondence name and address
WILLIAM F. LAWRENCE
C/O CURTIS, MORRIS & SAFFORD
530 FIFTH AVENUE
NEW YORK, NY 10036
Assignment: 10
Reel/Frame:005635/0594   Pages: 3
Recorded: 03/14/1991
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
RITTNER, SIEGBERT
Exec Dt:
10/02/1990
2
HAUTZEL, VOLKER
Exec Dt:
10/02/1990
Assignee
1
HOECHST CELANESE CORPORATION, A CORP. OF DE
ROUTE 202-206 NORTH
SOMERVILLE, NEW JERSEY 08876
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5136083
NONE
07575513
Correspondence name and address
SHIRLEY L. CHURCH
C/O HOECHST CELANESE CORP.
P.O. BOX 9077
CORPUS CHRISTI, TX 78469
Assignment: 11
Reel/Frame:005675/0397   Pages: 2
Recorded: 04/08/1991
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
RITTNER, SIEGBERT
Exec Dt:
03/18/1991
2
SCHMIDT, ADOLF
Exec Dt:
03/18/1991
3
STEINER, RUDOLF
Exec Dt:
03/13/1991
4
UNVERDORBEN, LEONHARD
Exec Dt:
03/13/1991
Assignee
1
HOECHST AKTIENGESELLSCHAFT, D-6230 FRANKFURT AM MAIN 80, FED. REP. OF GERMANY A CORP. OF FED. REP. OF GERMANY
GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5152875
NONE
07681891
Correspondence name and address
CONNOLLY AND HUTZ
1220 MARKET BLDG.
P.O. BOX 2207
WILMINGTON, DE 19899
Assignment: 12
Reel/Frame:006744/0507   Pages: 3
Recorded: 11/01/1993
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
RITTNER, SIEGBERT
Exec Dt:
01/09/1992
2
SPISKE, JUERGEN
Exec Dt:
01/09/1992
3
KOMPALIK, DIETER
Exec Dt:
01/09/1992
4
GRUBER, UDO
Exec Dt:
01/09/1992
Assignee
1
SIGRI GREAT LAKES CARBON GMBH
RHEINGAUSTRASSE 182
WIESBADEN, GERMANY 65203
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5281479
NONE
07837245
Correspondence name and address
LERNER AND GREENBERG
LAURENCE A. GREENBERG
P.O. BOX 2480
HOLLYWOOD, FL 33022
Assignment: 13
Reel/Frame:006350/0320   Pages: 2
Recorded: 07/31/1992
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
HAUTZEL, VOLKER
Exec Dt:
07/01/1992
2
RITTNER, SIEGBERT
Exec Dt:
07/01/1992
Assignee
1
HOECHST AKTIENGESELLSCHAFT, A CORP. OF THE FEDERAL REPUBLIC OF GERMANY
D-6230 FRANKFURT AM MAIN 80, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5312976
NONE
07917049
Correspondence name and address
THOMAS M. MESHBESHER
CONNOLLY & HUTZ
1220 MARKET BUILDING
P.O. BOX 2207
WILMINGTON, DE 19899
Assignment: 14
Reel/Frame:006636/0332   Pages: 2
Recorded: 06/29/1993
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
MUCK, KARL
Exec Dt:
06/16/1993
2
SCHLARF, HELMUT
Exec Dt:
06/16/1993
3
RITTNER, SIEGBERT
Exec Dt:
06/16/1993
Assignee
1
HOECHST AG
ZENTRALE PATENTABTEILUNG POSTFACH 80 03 20 D-6230 FRANKFURT AM MAIN 80 GERMANY
GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5401859
NONE
08072761
Correspondence name and address
CONNOLLY AND HUTZ
THOMAS M. MESHBESHER
P.O. BOX 2207
WILMINGTON, DE 19899
Assignment: 15
Reel/Frame:006658/0011   Pages: 3
Recorded: 08/12/1993
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DOERPINGHAUS, NORBERT
Exec Dt:
07/14/1993
2
RITTNER, SIEGBERT
Exec Dt:
07/14/1993
Assignee
1
HOECHST AG
ZENTRALE PATENTABTEILUNG GEBAUDE F 821
D-65926 FRANKFURT AM MAIN GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5419815
NONE
08105600
Correspondence name and address
THOMAS M. MESHBESHER
CONNOLLY AND HUTZ
P.O. BOX 2207
WILMINGTON, DE 19899
Assignment: 16
Reel/Frame:006976/0952   Pages: 2
Recorded: 04/20/1994
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
STEINER, RUDOLF
Exec Dt:
03/10/1994
2
KONIG, AXEL
Exec Dt:
03/17/1994
3
RITTNER, SIEGBERT
Exec Dt:
03/22/1994
Assignee
1
HOECHST AKTIENGESELLSCHAFT
GEBAUDE F821
65926 FRANKFURT AM MAIN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5447542
NONE
08230498
Correspondence name and address
CURTIS, MORRIS & SAFFORD, P.C.
WILLIAM F. LAWRENCE
530 FIFTH AVENUE
NEW YORK, NY 10036
Assignment: 17
Reel/Frame:006977/0972   Pages: 2
Recorded: 04/20/1994
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
STEINER, RUDOLF
Exec Dt:
03/10/1994
2
KONIG, AXEL
Exec Dt:
03/17/1994
3
RITTNER, SIEGBERT
Exec Dt:
03/22/1994
Assignee
1
HOECHST AKTIENGESELLSCHAFT
GEBAUDE F821
65926 FRANKFURT AM MAIN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5447541
NONE
08230496
Correspondence name and address
CURTIS, MORRIS & SAFFORD, P.C.
WILLIAM F. LAWRENCE
530 FIFTH AVENUE
NEW YORK, NY 10036
Assignment: 18
Reel/Frame:007006/0371   Pages: 2
Recorded: 05/19/1994
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
RITTNER, SIEGBERT
Exec Dt:
04/18/1994
2
RUFFER, HANS-MARTIN
Exec Dt:
04/18/1994
3
SCHMID, JORG
Exec Dt:
04/18/1994
4
WISSER, THOMAS
Exec Dt:
04/18/1994
Assignee
1
HOECHST AKTIENGESELLSCHAFT
65926 FRANKFURT AM MAIN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5532406
NONE
08245962
Correspondence name and address
CURTIS , MORRIS & SAFFORD, P.C.
WILLIAM F. LAWRENCE
530 FIFTH AVENUE
NEW YORK, NY 10036

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