Inventor
Volker H. von Ahn
Inventor
Mahopac, NY, US
Overview
Patents· 19 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C07Dprimary
C07DHeterocyclic compounds15%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients15%
C07CAcyclic or carbocyclic compounds14%
C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium11%
C07BGeneral methods of organic chemistry10%
C09DCoating compositions, e.g. paints, varnishes or lacquers8%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds7%
B41MPrinting, duplicating, marking, or copying processes6%
G03CPhotosensitive materials for photographic purposes6%
G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices6%
PatentTitleYear
6,218,536'1,2-bis-adducts of stable nitroxides with substituted ethylenes and stabilized compositions'20016,117,276'Inhibiting polymerization of vinyl aromatic monomers'20005,942,626'Process for making 5-thio-substituted benzotriazole UV absorbers'19995,844,025'1,2-Bis-adducts of stable nitroxides with substituted ethylenes and stabilized compositions'19985,750,765'7-substituted quinone methides as inhibitors for unsaturated monomers'19985,670,692'7-substituted quinone methides as inhibitors for unsaturated monomers'19975,616,774'Inhibition of unsaturated monomers with 7-aryl quinone methides'19975,607,987'2-(2-hydroxy-3-.alpha. cumyl-5-tert nonyl or dodecyl phenyl)-2H- Benzotriazole UV Absorbers'19975,583,247'7-substituted quinone methides as inhibitors for unsaturated monomers'19965,574,166'Crystalline form of 2-(2-hydroxy-3-.alpha.-cumyl-5-tert-octylphenyl)-2H-benzotriazole'19965,563,242'Electro coat/base coat/clear coat finishes stabilized with soluble and thermally stable benzotriazole UV absorbers'19965,554,760'2-(2-hydroxy-3-.alpha.-cumyl-5-nonylor 5-dodecylphenyl)-2H-benzotriazole'19965,545,782'Method for inhibiting premature polymerization of vinyl aromatic monomers'19965,545,786'Method for inhibiting premature polymerization of vinyl aromatic monomers'19965,516,914'Compositions stabilized with 5-thio-substituted benzotriazole UV-absorbers'19965,436,349'Compositions stabilized with 5-sulfonyl-substituted benotriazole UV-absorbers'19955,280,124'5-sulfonyl-substituted benzotriazole UV-absorbers'19945,278,314'5-thio-substituted benzotriazole UV-absorbers'19945,254,760'Inhibiting polymerization of vinyl aromatic monomers'1993Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1993–1997Patents assigned to CIBA GEIGY CORP (14)· patent assignee history
1993–2001Based in Mahopac, NY, US· patent location history
1998–1999Patents assigned to CIBA SC HOLDING AG (3)· patent assignee history
2000Patents assigned to NALCO EXXON ENERGY CHEM LP (1)· patent assignee history
2001Patents assigned to CIBA SPECIALTY CHEMCIALS CORP (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CIBA GEIGY CORP | 14 | 1993–1997 |
| CIBA SC HOLDING AG | 3 | 1998–1999 |
| CIBA SPECIALTY CHEMCIALS CORP | 1 | 2001 |
| NALCO EXXON ENERGY CHEM LP | 1 | 2000 |
Locations
| Location | Patents | Span |
|---|---|---|
| Mahopac, New York, US | 19 | 1993–2001 |