Inventor
Arnold Wittwer
Inventor
Ludwigshafen, DE
Overview
Patents· 8 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C07Cprimary
C07CAcyclic or carbocyclic compounds53%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry33%
Y02PClimate change mitigation technologies in the production or processing of goods7%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%
PatentTitleYear
6,201,160'Preparation of alcohols'20014,442,306'Production of tertiary amines'19844,239,657'Manufacture of carbonyl compounds'19804,224,251'Preparation of 5-diethylaminopentan-2-ol'19804,212,825'Aldol condensation and hydrogenation process using a catalyst of nickel and cobalt together with zinc oxide and another metal of groups VIII, IIb, IIIa, IVa and Va of the periodic table'19804,207,263'Manufacture of secondary amines by alkylating ammonia with alcohols'19804,146,581'Manufacture of higher ketones'19793,957,830'Manufacture of succinic anhydride'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–2001Patents assigned to BASF AG (8)· patent assignee history
1976–1984Based in Ludwigshafen, DE· patent location history
1980Based in Ludwidshafen, DE· patent location history
2001Based in Neustadt, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BASF AG | 8 | 1976–2001 |
Locations
| Location | Patents | Span |
|---|---|---|
| Ludwigshafen, DE | 6 | 1976–1984 |
| Neustadt, DE | 1 | 2001 |
| Ludwidshafen, DE | 1 | 1980 |