Inventor
Klaus Lehr
Inventor
Hurth, DE
Overview
Patents· 9 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C01Bprimary
C01BNon-metallic elements17%
C22BProduction and refining of metals17%
Y02PClimate change mitigation technologies in the production or processing of goods13%
C01GCompounds containing metals not covered by subclasses c01d or c01f8%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%
B01DSeparation4%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry4%
B02CCrushing, pulverising, or disintegrating in general4%
B29BPreparation or pretreatment of the material to be shaped4%
C02FTreatment of water, waste water, sewage, or sludge4%
PatentTitleYear
6,313,228'Peroxidic treatment of olefin polymers'20014,600,565'Process for making manganese (II) salt solutions containing ammonium salt'19864,482,527'Process for removing nitrogen dioxide from off-gas'19844,447,400'Metering device'19844,418,043'Process for separating metals from aqueous solutions'19834,394,360'Process for reducing iron in phosphoric acid solution'19834,392,962'Process for separating metals from aqueous solutions'19834,330,504'Apparatus for making red phosphorus'19824,273,752'Process for making red phosphorus'1981Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1981–1986Patents assigned to HOECHST AG (8)· patent assignee history
1981–1983Based in Hurth-Knapsack, DE· patent location history
1983–1986Based in Hurth, DE· patent location history
2001Patents assigned to BASELL POLYOLEFINE GMBH (1)· patent assignee history
2001Based in Volxheim, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HOECHST AG | 8 | 1981–1986 |
| BASELL POLYOLEFINE GMBH | 1 | 2001 |
Locations
| Location | Patents | Span |
|---|---|---|
| Hurth, DE | 4 | 1983–1986 |
| Hurth-Knapsack, DE | 4 | 1981–1983 |
| Volxheim, DE | 1 | 2001 |