skip navigationU S P T O SealUnited States Patent and Trademark Office AOTW logo
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 : KALBFELL, HEINZ
Total Assignments: 4
Assignment: 1
Reel/Frame:004251/0078   Pages: 1
Recorded: 02/13/1984
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
CORNILS, BOY
Exec Dt:
01/24/1984
2
HIBBEL, JOSEF
Exec Dt:
01/24/1984
3
KESSEN, GUNTHER
Exec Dt:
01/24/1984
4
KONKOL, WERNER
Exec Dt:
01/24/1984
5
LIEDER, BERNHARD
Exec Dt:
01/24/1984
6
WIEBUS, ERNST
Exec Dt:
01/24/1984
7
KALBFELL, HEINZ
Exec Dt:
01/24/1984
8
BACH, HANSWILHELM
Exec Dt:
01/24/1984
Assignee
1
RUHRCHEMIE AKTIENGESELLSCHAFT, A GERMAN CORP.
Properties
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
4533755
NONE
06558788
 
4533755
NONE
06558788
Correspondence name and address
BIERMAN, BIERMAN & PEROFF
437 MADISON AVE.
NEW YORK, NY 10022
Assignment: 2
Reel/Frame:004357/0613   Pages: 1
Recorded: 12/19/1984
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
KALBFELL, HEINZ
Exec Dt:
11/02/1984
2
LIEDER, BERNHARD
Exec Dt:
11/02/1984
3
MERCAMP, HERBERT
Exec Dt:
11/02/1984
Assignee
1
RUHRCHEMIE AKTIENGESELLSCHAFT
A CORP OF GERMANY
NOT PROVIDED
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4577043
NONE
06670357
Correspondence name and address
BIERMAN, BIERMAN & PEROFF
437 MADISON AVE.
NEW YORK, NY 10022
Assignment: 3
Reel/Frame:007171/0581   Pages: 2
Recorded: 09/23/1994
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BAHRMANN, HELMUT
Exec Dt:
08/31/1994
2
GREB, WOLFGANG
Exec Dt:
08/31/1994
3
DAMBKES, GEORG
Exec Dt:
08/31/1994
4
HEYMANNS, PETER
Exec Dt:
08/31/1994
5
KALBFELL, HEINZ
Exec Dt:
08/31/1994
6
LAPPE, PETER
Exec Dt:
08/31/1994
7
SPRINGER, HELMUT
Exec Dt:
08/31/1994
8
VON MULMANN, EBERHARD
Exec Dt:
08/31/1994
9
WEBER, JURGEN
Exec Dt:
08/31/1994
10
WIEBUS, ERNST
Exec Dt:
08/31/1994
11
WIEBUS, ERNST
Exec Dt:
08/31/1994
12
FROHNING, CARL DIETER
Exec Dt:
08/31/1994
13
KAPPESSER, HARALD
Exec Dt:
08/31/1994
Assignee
1
HOECHST AKTIENGESELLSCHAFT
WERK RUHRCHEMIE, PATENT DEPARTMENT
POSTFACH 13 01 60
D-46128 OBERHAUSEN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5410072
NONE
08311557
Correspondence name and address
JORDAN B. BIERMAN
BIERMAN AND MUSERLIAN
28TH FLOOR
600 THIRD AVENUE
NEW YORK, NY 10016
Assignment: 4
Reel/Frame:008686/0358   Pages: 3
Recorded: 04/17/1997
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BAHRMANN, HELMUT
Exec Dt:
04/15/1997
2
FROHNING, DIETER
Exec Dt:
04/15/1997
3
GICK, WILHELM
Exec Dt:
04/15/1997
4
HOFS, WOLFGANG
Exec Dt:
04/15/1997
5
KALBFELL, HEINZ
Exec Dt:
04/15/1997
6
KAPPESSER, HARALD
Exec Dt:
04/15/1997
7
LAPPE, PETER
Exec Dt:
04/15/1997
8
SCHALAPSKI, KURT
Exec Dt:
04/15/1997
9
WIEBUS, ERNST
Exec Dt:
04/15/1997
10
ZGORZELSKI, WOLFGANG
Exec Dt:
04/15/1997
Assignee
1
HOECHST AKTIENGESELLSCHAFT
POSTFACH 13 01 60
D-46128 OBERHAUSEN, GERMANY
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5808168
NONE
08839328
Correspondence name and address
BIERMAN, MUSERLIAN AND LUCAS LLP
CHARLES A. MUSERLIAN
600 THIRD AVENUE
NEW YORK, NY 10016

Search Results as of: 05/24/2024 04:17 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