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Patent Assignment Assignor Details
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Assignor Name : DERLETH, HELMUT
Total Assignments: 12
Assignment: 1
Reel/Frame:004753/0731   Pages: 1
Recorded: 06/26/1987
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
DERLETH, HELMUT
Exec Dt:
06/09/1987
2
WALTER, ROBERT
Exec Dt:
06/09/1987
3
WEIDENBACH, GUNTER
Exec Dt:
06/09/1987
4
STREBELLE, MICHEL
Exec Dt:
06/09/1987
Assignee
1
SOLVAY & CIE (SOCIETE ANONYME)
33, RUE DU PRINCE ALBERT,
B-1050 BRUSSELS, BELGIUM
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4910354
NONE
07067250
Correspondence name and address
SPENCER & FRANK
1111-19TH ST., N.W.
WASHINGTON, DC 20036
Assignment: 2
Reel/Frame:006045/0410   Pages: 2
Recorded: 03/09/1992
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
DERLETH, HELMUT
Exec Dt:
02/26/1992
2
GROSJEAN, ABEL
Exec Dt:
02/26/1992
Assignee
1
SOLVAY (SOCIETE ANONYME)
33, RUE DU PRINCE ALBERT
B-1050 BRUSSELS, BELGIUM
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5232883
NONE
07848347
Correspondence name and address
SPENCER, FRANK & SCHNEIDER
ATTN: GEORGE H. SPENCER
1111 NINETEENTH STREET, N.W.
WASHINGTON, D.C. 20036
Assignment: 3
Reel/Frame:006580/0261   Pages: 2
Recorded: 05/07/1993
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DERLETH, HELMUT
Exec Dt:
04/19/1993
2
GROSJEAN, ABEL
Exec Dt:
04/19/1993
Assignee
1
SOLVAY (SOCIETE ANONYME)
33, RUE DU PRINCE ALBERT
B-1050 BRUSSELS,, BELGIUM
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5716898
NONE
08027521
Correspondence name and address
SPENCER, FRANK & SCHNEIDER
GEORGE H. SPENCER
1111 19TH STREET, N.W.
WASHINGTON, D.C. 20036
Assignment: 4
Reel/Frame:006571/0586   Pages: 2
Recorded: 05/14/1993
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DERLETH, HELMUT
Exec Dt:
05/03/1993
2
BRETZ, KARL HEINZ
Exec Dt:
05/03/1993
Assignee
1
SOLVAY CATALYSTS GMBH
POSTFACH 2 20 HANS-BOCKLER-ALLEE 20
D-3000 HANNOVER 1, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5468558
NONE
08061313
Correspondence name and address
JOSEPH D. EVANS
EVENSON, MCKEOWN, EDWARDS & LENAHAN
1200 G STREET, N.W., SUITE 700
WASHINGTON, D.C. 20005
Assignment: 5
Reel/Frame:006727/0664   Pages: 2
Recorded: 10/15/1993
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BRETZ, KARL-HEINZ
Exec Dt:
05/24/1993
2
FUHRMANN, KIRSTEN
Exec Dt:
05/26/1993
3
HOFFMEISTER, MICHAEL
Exec Dt:
06/01/1993
4
ENGELMANN, PETER
Exec Dt:
06/14/1993
5
MEYER-ANDERSON, ANDREAS
Exec Dt:
06/14/1993
6
SCHULTZ, EGON
Exec Dt:
06/01/1993
7
WISCHNAT, ALF-ERIC
Exec Dt:
05/26/1993
8
DERLETH, HELMUT
Exec Dt:
05/24/1993
9
SCHWETJE, NORBERT
Exec Dt:
06/03/1993
Assignee
1
SOLVAY CATALYSTS GMBH
POSTFACH 2 20 HANS-BOECKLER-ALLEE 20 3000
HANNOVER 1, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5421860
NONE
08062596
Correspondence name and address
J. D. EVANS
EVENSON, MCKEOWN, EDWARDS & LENAHAN
1200 G STREET, N.W., STE. 700
WASHINGTON, DC 20005
Assignment: 6
Reel/Frame:007243/0427   Pages: 3
Recorded: 09/13/1994
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BONSE, DIRK
Exec Dt:
07/11/1994
2
BRETZ, KARL-HEINZ
Exec Dt:
07/25/1994
3
DERLETH, HELMUT
Exec Dt:
07/25/1994
4
SELL, MICHAEL
Exec Dt:
07/11/1994
Assignee
1
SOLVAY UMWELTCHEMIE GMBH
HANS-BOECKLER-ALLEE 20 D-30173 HANNOVER, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5518979
NONE
08302751
Correspondence name and address
J. D. EVANS
EVENSON, MCKEOWN, EDWARDS ET AL.
1200 G STREET, N.W., SUITE 700
WASHINGTON, DC 20005
Assignment: 7
Reel/Frame:007325/0983   Pages: 3
Recorded: 12/19/1994
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BONSE, DIRK
Exec Dt:
10/04/1994
2
BRETZ, KARL-HEINZ
Exec Dt:
10/06/1994
3
DERLETH, HELMUT
Exec Dt:
10/23/1994
4
SELL, MICHAEL
Exec Dt:
09/30/1994
5
BISCHOFF, MICHAEL
Exec Dt:
11/10/1994
Assignee
1
SOLVAY UMWELTCHEMIE GMBH
HANS-BOEKLER-ALLEE 20
D-30173 HANNOVER, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5507956
NONE
08302764
Correspondence name and address
J. D. EVANS
EVENSON, MCKEOWN, EDWARDS & LENAHAN
1200 G STREET, N.W., SUITE 700
WASHINGTON, D.C. 20005
Assignment: 8
Reel/Frame:007336/0887   Pages: 3
Recorded: 01/30/1995
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DERLETH, HELMUT
Exec Dt:
01/17/1995
2
ADEM, DENIZ
Exec Dt:
01/17/1995
3
STREBELLE, MICHEL
Exec Dt:
01/17/1995
Assignee
1
SOLVAY (SOCIETE ANONYME)
RUE DU PRINCE ALBERT, 33
B-1050 BRUSSELS, BELGIUM
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5527754
NONE
08350994
Correspondence name and address
SPENCER, FRANK & SCHNEIDER
GEORGE H. SPENCER
1100 NEW YORK AVENUE, N.W.
SUITE 300 EAST
WASHINGTON, D.C. 20005-3955
Assignment: 9
Reel/Frame:007785/0599   Pages: 3
Recorded: 09/05/1995
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DERLETH, HELMUT
Exec Dt:
02/24/1995
2
BRETZ, KARL-HEINZ
Exec Dt:
02/24/1995
3
NEUENFELDT, GERHARD
Exec Dt:
02/22/1995
4
SCHINDLER, HUBERT
Exec Dt:
02/22/1995
5
OTTMAN. ALFRED
Exec Dt:
02/22/1995
Assignee
1
SOLVAY DEUTSCHLAND GMBH
HANS-BOECKLER-ALLEE 20
D-30173 HANNOVER, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5676845
NONE
08513992
Correspondence name and address
EVENSON, MCKEOWN, EDWARDS & LENAHAN
J.D. EVANS
1200 G STREET, N.W., SUITE 700
WASHINGTON, D.C. 20005
Assignment: 10
Reel/Frame:007702/0769   Pages: 2
Recorded: 09/05/1995
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DERLETH, HELMUT
Exec Dt:
06/30/1995
2
BRETZ, KARL-HEINZ
Exec Dt:
06/30/1995
Assignee
1
SOLVAY DEUTSCHLAND GMBH
HANS-BOECKLER-ALLEE 20
HANNOVER, GERMANY D-301
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5736118
NONE
08513885
Correspondence name and address
EVENSON, MCKEOWN, EDWARDS & LENAHAN
J. D. EVANS
1200 G STREET, N.W.
SUITE 700
WASHINGTON, D.C. 20005
Assignment: 11
Reel/Frame:010300/0619   Pages: 3
Recorded: 09/23/1999
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BRETZ, KARL-HEINZ
Exec Dt:
01/14/1999
2
RASCHE, HEINZ-HELMER
Exec Dt:
01/18/1999
3
DERLETH, HELMUT
Exec Dt:
01/14/1999
4
FRANCOIS, PHILIPPE
Exec Dt:
01/29/1999
Assignee
1
SOLVAY DEUTSCHLAND GMBH
HANS-BOECKLER-ALLEE 20
D-30173 HANNOVER, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6300468
NONE
09230522
Correspondence name and address
EVENSON, MCKEOWN, EDWARDS, ET AL
J. D. EVANS
1200 G STREET, N.W., SUITE 700
WASHINGTON, D.C. 20005
Assignment: 12
Reel/Frame:010940/0295   Pages: 3
Recorded: 07/12/2000
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
STREBELLE, MICHEL
Exec Dt:
06/20/2000
2
DERLETH, HELMUT
Exec Dt:
05/24/2000
3
BRETZ, KARL-HEINZ
Exec Dt:
05/24/2000
Assignee
1
SOLVAY (SOCIETE ANONYME)
RUE DU PRINCE ALBERT, 33
B-1050 BRUXELLES, BELGIUM
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6465382
NONE
09554113
Correspondence name and address
LARSON & TAYLOR, PLC
LINDA R. POTEATE
1199 NO. FAIRFAX ST.
SUITE 900
ALEXANDRIA, VA 22314-1437

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