Inventor
Elmar Lohmar
Inventor
Rodenkirchen, DT
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C07Fprimary
C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium40%
C01BNon-metallic elements10%
C07CAcyclic or carbocyclic compounds10%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds10%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients10%
D01FChemical features in the manufacture of artificial filaments, threads, fibres, bristles or ribbons10%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests10%
PatentTitleYear
4,678,482'Process for purifying hydrogen chloride gas'19874,062,888'Continuous production of 2,5-dioxo-1-oxa-2-phospholanes'19774,045,480'Process for preparing 1,2-oxa-phospholanes'19774,033,936'Process for the manufacture of flame retarding linear polyesters'19774,022,826'Production of beta-halogenoformyl-ethyl phosphinic acid halides'19774,016,048'Distillative purification of 2,5-dioxo-1-oxa-2-phospholanes'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–1987Patents assigned to HOECHST AG (6)· patent assignee history
1977Based in Rodenkirchen, DT· patent location history
1987Based in Cologne, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HOECHST AG | 6 | 1977–1987 |
Locations
| Location | Patents | Span |
|---|---|---|
| Rodenkirchen, DT | 5 | 1977 |
| Cologne, DE | 1 | 1987 |