Inventor
Paul Grafen
Inventor
Weisenheim, DE
Overview
Patents· 12 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C07Cprimary
C07CAcyclic or carbocyclic compounds21%
C07DHeterocyclic compounds18%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry15%
B01DSeparation9%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests9%
A61KPreparations for medical, dental or toiletry purposes6%
C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium6%
Y02PClimate change mitigation technologies in the production or processing of goods6%
A23LFoods, foodstuffs or non-alcoholic beverages, not otherwise provided for3%
A23PShaping or working of foodstuffs, not fully covered by a single other subclass3%
PatentTitleYear
6,554,965'Rectification column for isolating pure substances from high boiling air-and/or temperature sensitive substances'20036,111,117'Process for isolation of pure substances from mixtures of high-boiling air and/or temperature-sensitive substances which require a high separation efficiency by rectification under medium vacuum, and columns suitable for this process'20005,950,454'Cloth or cloth-like packing which is subject to low pressure losses and has an ordered structure for use in material-exchange columns and rectification method using such packing'19995,523,420'Preparation of alpha-tocopherol and alpha-tocopheryl acetate in liquid or supercritical carbon dioxide'19965,468,883'Preparation of vitamin E'19955,290,567'Pulverulent products composed of a water-insoluble core substance and of a protective covering'19945,063,194'Palladium catalyst'19915,041,572'Preparation of 2,3,5-trimethyl-p-benzoquinone'19914,519,961'Production of dry powders of substances which are sensitive to oxidation'19854,206,153'Treatment of methanolic-aqueous residues from syntheses employing triphenylphosphonium salts'19804,191,692'Manufacture of tocopherol'19804,182,731'Preparation of aqueous solutions or fine aqueous dispersions of polyenyltriarylphosphonium salts'1980Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1980–2003Patents assigned to BASF AG (12)· patent assignee history
1980–2003Based in Weisenheim, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BASF AG | 12 | 1980–2003 |
Locations
| Location | Patents | Span |
|---|---|---|
| Weisenheim, DE | 12 | 1980–2003 |