Inventor · disambiguated record
Paul Grafen
Also filed as: GRAFEN PAUL · GRASSNER HANS
12 granted patents·195 citations·filing 1978–1999
92Inventor score
Files withBASF AG12
Top patents by PatentIndex Score
12 records- 0185US4182731APreparation of aqueous solutions or fine aqueous dispersions of polyenyltriarylphosphonium saltsBASF AG·Filed 1978·Granted Jan 8, 1980·18 cites·4 claims
- 0279US4191692AManufacture of tocopherolBASF AG·Filed 1978·Granted Mar 4, 1980·11 cites·13 claims
- 0378US4519961AProduction of dry powders of substances which are sensitive to oxidationBASF AG·Filed 1982·Granted May 28, 1985·47 cites·6 claims
- 0476US6554965B1Rectification column for isolating pure substances from high boiling air-and/or temperature sensitive substancesBASF AG·Filed 1999·Granted Apr 29, 2003·15 cites·9 claims
- 0574US5468883APreparation of vitamin EBASF AG·Filed 1993·Granted Nov 21, 1995·14 cites·4 claims
- 0671US5063194APalladium catalystBASF AG·Filed 1990·Granted Nov 5, 1991·30 cites·8 claims
- 0760US5950454ACloth 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 packingBASF AG·Filed 1996·Granted Sep 14, 1999·22 cites·10 claims
- 0851US6111117AProcess 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 processBASF AG·Filed 1996·Granted Aug 29, 2000·16 cites·18 claims
- 0949US5523420APreparation of alpha-tocopherol and alpha-tocopheryl acetate in liquid or supercritical carbon dioxideBASF AG·Filed 1995·Granted Jun 4, 1996·10 cites·5 claims
- 1044US4206153ATreatment of methanolic-aqueous residues from syntheses employing triphenylphosphonium saltsBASF AG·Filed 1978·Granted Jun 3, 1980·2 cites·1 claims
- 1143US5041572APreparation of 2,3,5-trimethyl-p-benzoquinoneBASF AG·Filed 1990·Granted Aug 20, 1991·3 cites·8 claims
- 1239US5290567APulverulent products composed of a water-insoluble core substance and of a protective coveringBASF AG·Filed 1992·Granted Mar 1, 1994·7 cites·6 claims
Join the waitlist — get patent alerts
Get an alert when Paul Grafen files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →