Inventor
Werner J. Witzl
Inventor
Stade, DE
Overview
Patents· 10 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C07Dprimary
C07DHeterocyclic compounds32%
Y02PClimate change mitigation technologies in the production or processing of goods23%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry19%
B01DSeparation13%
C01BNon-metallic elements10%
C07CAcyclic or carbocyclic compounds3%
PatentTitleYear
10,676,451Process for purifying propylene oxide202010,435,381Process for preparing propylene oxide201910,316,007Part-stream distillation201910,195,598Process for the regeneration of a titanium zeolite catalyst for propylene epoxidation201910,053,439Catalyst system for preparing propylene oxide20189,738,616'Process for preparing propylene oxide'20179,732,054'Part-stream distillation'20179,725,428'Process for preparing propylene oxide'20179,688,648'Process for the preparation of propylene oxide'20175,523,425'Process for producing Chlorohydrins'1996Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1996Patents assigned to DOW CHEMICAL CO (1)· patent assignee history
1996Based in Konigsmarckstr, DE· patent location history
2017–2020Patents assigned to BASF SE (9)· patent assignee history
2017–2020Patents assigned to DOW GLOBAL TECHNOLOGIES LLC (9)· patent assignee history
2017–2020Based in Stade, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BASF SE | 9 | 2017–2020 |
| DOW GLOBAL TECHNOLOGIES LLC | 9 | 2017–2020 |
| DOW CHEMICAL CO | 1 | 1996 |
Locations
| Location | Patents | Span |
|---|---|---|
| Stade, DE | 9 | 2017–2020 |
| Konigsmarckstr, DE | 1 | 1996 |