Inventor
Raimund H. Silva
Inventor
Hattingen, DE
Overview
Patents· 9 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C08Jprimary
C08JWorking-up27%
Y10TTechnical subjects covered by former us classification15%
B01DSeparation12%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry12%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form12%
A41DOuterwear8%
A62BDevices, apparatus or methods for life-saving8%
A62DChemical means for extinguishing fires or for combating or protecting against harmful chemical agents4%
C25BElectrolytic or electrophoretic processes for the production of compounds or non-metals4%
PatentTitleYear
4,544,471'Electrolytic cell with cation exchange membrane having high equivalent weight component'19854,518,650'Protective clothing of fabric containing a layer of highly fluorinated ion exchange polymer'19854,477,321'Sacrificial reinforcements in cation exchange membrane'19844,469,744'Protective clothing of fabric containing a layer of highly fluorinated ion exchange polymer'19844,446,269'Solvents of carboxyl ester compounds and fluoropolymers'19844,414,280'Membranes and composites from fluoropolymer solutions'19834,411,750'Cation exchange membrane with high equivalent weight component'19834,401,711'Cation exchange membrane with high equivalent weight component'19834,348,310'Solutions of sulfonyl fluoride compounds and fluoropolymers'1982Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1982–1985Patents assigned to DU PONT (9)· patent assignee history
1982–1984Based in Wilmington, DE, US· patent location history
1983–1985Based in Hattingen, DE· patent location history
1984Based in Winsen, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| DU PONT | 9 | 1982–1985 |
Locations
| Location | Patents | Span |
|---|---|---|
| Hattingen, DE | 5 | 1983–1985 |
| Wilmington, Delaware, US | 3 | 1982–1984 |
| Winsen, DE | 1 | 1984 |