Inventor
Franz Thonnessen
Inventor
Oberhausen, DE
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C07Cprimary
C07CAcyclic or carbocyclic compounds36%
D04HMaking textile fabrics, e.g. from fibres or filamentary material18%
Y10TTechnical subjects covered by former us classification18%
A47CChairs9%
A47GHousehold or table equipment9%
C04BLime, magnesia9%
PatentTitleYear
6,479,416'Fibrous-formation aerogel composite material containing at least one thermoplastic fibrous material, process for the production thereof, and use thereof'20025,786,059'Fiber web/aerogel composite material comprising bicomponent fibers, production thereof and use thereof'19985,586,350'Low flammability pillow'19965,072,058'Process for the preparation of 2,2-dimethylpropane-1,3-diol'19915,041,675'Process for preparing 3(4),8(9)-bis(aminomethyl)-tricyclo[5.2.1.0.sup.2,6 ] d'19914,940,818'Process on the preparation of 2,2\'-oxybis(N,N-dimethyl-ethanamine)'19904,918,247'Process for the preparation of 2,2-dimethylpropanediol-1,3'1990Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1990–1998Patents assigned to HOECHST AG (5)· patent assignee history
1990Patents assigned to RUHRCHEMIE AG (1)· patent assignee history
1990–1991Based in Oberhausen, DE· patent location history
1996–2002Based in Bobingen, DE· patent location history
2002Patents assigned to CABOT CORP (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HOECHST AG | 5 | 1990–1998 |
| CABOT CORP | 1 | 2002 |
| RUHRCHEMIE AG | 1 | 1990 |
Locations
| Location | Patents | Span |
|---|---|---|
| Oberhausen, DE | 4 | 1990–1991 |
| Bobingen, DE | 3 | 1996–2002 |