Inventor
Werner Schumann
Inventor
Pulheim, DE
Overview
Patents· 9 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C03Cprimary
C03CChemical composition of glasses, glazes or vitreous enamels23%
B01DSeparation15%
G02BOptical elements, systems or apparatus15%
B29CShaping or joining of plastics8%
C08JWorking-up8%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients8%
C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments8%
C11DDetergent compositions8%
Y10TTechnical subjects covered by former us classification8%
PatentTitleYear
6,712,862'Granular compacts, their production and use'20045,427,623'Cleaning of machines for the production and processing of plastics'19955,114,453'Lightwave guide produced by ion exchange of cs+ ions'19925,017,422'Cast films of ABS plastics'19914,895,891'Mat, elastic-thermoplastic moulding compounds'19904,704,371'Infrared-transparent chalcogenide glass'19874,356,005'Separation of gases'19824,204,976'Glass for radio-photoluminescence dosimetry'19804,113,448'Gas separation process and treatment of a gas in a gas separation process'1978Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1978–1982Patents assigned to ATOMIC ENERGY BOARD (2)· patent assignee history
1978–1982Based in Pretoria, ZA· patent location history
1980Patents assigned to JENAER GLASWERK SCHOTT & GEN (1)· patent assignee history
1980–1992Based in Mainz, DE· patent location history
1987–1992Patents assigned to SCHOTT GLASWERKE (2)· patent assignee history
1987Based in Mainz-Mombach, DE· patent location history
1990–1995Patents assigned to BAYER AG (3)· patent assignee history
1990–1995Based in Pulheim, DE· patent location history
2004Patents assigned to CLARIANT FINANCE BVI LTD (1)· patent assignee history
2004Based in Efringen-Kirchen, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BAYER AG | 3 | 1990–1995 |
| ATOMIC ENERGY BOARD | 2 | 1978–1982 |
| SCHOTT GLASWERKE | 2 | 1987–1992 |
| CLARIANT FINANCE BVI LTD | 1 | 2004 |
| JENAER GLASWERK SCHOTT & GEN | 1 | 1980 |
Locations
| Location | Patents | Span |
|---|---|---|
| Pulheim, DE | 3 | 1990–1995 |
| Mainz, DE | 2 | 1980–1992 |
| Pretoria, ZA | 2 | 1978–1982 |
| Efringen-Kirchen, DE | 1 | 2004 |
| Mainz-Mombach, DE | 1 | 1987 |