Inventor
Hermann Lohwasser
Inventor
Dormagen, DE
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C07Cprimary
C07CAcyclic or carbocyclic compounds20%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients20%
D01FChemical features in the manufacture of artificial filaments, threads, fibres, bristles or ribbons20%
D01DMechanical methods or apparatus in the manufacture of artificial filaments, threads, fibres, bristles or ribbons10%
D01GPreliminary treatment of fibres, e.g. for spinning10%
D02GCrimping or curling fibres, filaments, threads, or yarns10%
Y10TTechnical subjects covered by former us classification10%
PatentTitleYear
6,136,987'Use of arylguanidinium xanthogenates as vulcanization accelerators and process for the production thereof'20005,670,693'Dithiocarbamate salts and their use as vulcanization accelerators'19974,140,844'Polyacrylonitrile filament yarns'19794,035,884'Process for the production of bulk yarns'19774,013,753'Process for the production of spontaneously crimping polyacrylonitrile composite fibres with improved crimp properties'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–1997Patents assigned to BAYER AG (4)· patent assignee history
1977–1997Based in Dormagen, DE· patent location history
2000Patents assigned to RHEIN CHEMIE RHEINAU GMBH (1)· patent assignee history
2000Based in Stockach, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BAYER AG | 4 | 1977–1997 |
| RHEIN CHEMIE RHEINAU GMBH | 1 | 2000 |
Locations
| Location | Patents | Span |
|---|---|---|
| Dormagen, DE | 4 | 1977–1997 |
| Stockach, DE | 1 | 2000 |