Inventor · disambiguated record
Hans Ulrich Gonzenbach
Also filed as: GONZENBACH HANS U · GONZENBACH HANS ULRICH
17 granted patents·242 citations·filing 1980–2000
94Inventor score
Top patents by PatentIndex Score
17 records- 0179US6147049ATetra-hydronaphthalenesGIVAUDAN ROURE INT·Filed 1999·Granted Nov 14, 2000·20 cites·18 claims
- 0278US5084440AAcetals and ketals of oxo-tetralins and oxo-indanesGIVAUDAN CORP·Filed 1990·Granted Jan 28, 1992·21 cites·38 claims
- 0377US6033649ALight screening agentsROCHE VITAMINS INC·Filed 1996·Granted Mar 7, 2000·53 cites·13 claims
- 0476US6165451ACosmetic light screening compositionROCHE VITAMINS INC·Filed 2000·Granted Dec 26, 2000·9 cites·23 claims
- 0572US4406828AOdorant and/or flavorant substancesGIVAUDAN CORP·Filed 1980·Granted Sep 27, 1983·8 cites·23 claims
- 0670US6193959B1Light screening compositionsROCHE VITAMINS INC·Filed 1997·Granted Feb 27, 2001·44 cites·2 claims
- 0765US5985251ALight screening compositionsROCHE VITAMINS INC·Filed 1998·Granted Nov 16, 1999·29 cites·20 claims
- 0865US4908349ABicyclic aldehydes and fragrance compositions containing sameGIVAUDAN CORP·Filed 1988·Granted Mar 13, 1990·7 cites·6 claims
- 0959US4804776AProcess for the manufacture of benzene derivativesGIVAUDAN CORP·Filed 1985·Granted Feb 14, 1989·5 cites·12 claims
- 1052US6048516ALight-screening agentsROCHE VITAMINS INC·Filed 1998·Granted Apr 11, 2000·16 cites·40 claims
- 1150US6123929ALight screening composition containing a polysiloxane-type UV-B screening agent and a benzimidazol-type screening agentROCHE VITAMINS INC·Filed 1999·Granted Sep 26, 2000·9 cites·14 claims
- 1247US4481133AOdorant and/or flavorant substancesGIVAUDAN CORP·Filed 1983·Granted Nov 6, 1984·2 cites·13 claims
- 1346US6069170ALight screening compounds and compositionsROCHE VITAMINS INC·Filed 1998·Granted May 30, 2000·11 cites·27 claims
- 1443US4713473AProcess for treating 2-ethylhexyl p-methoxycinnamate in the presence of a phenolGIVAUDAN CORP·Filed 1987·Granted Dec 15, 1987·2 cites·7 claims
- 1540US4457862AOdorant substancesGIVAUDAN CORP·Filed 1982·Granted Jul 3, 1984·5 cites·11 claims
- 1631US5840282ALight screening compositionsGIVAUDAN ROURE INT·Filed 1996·Granted Nov 24, 1998·1 cites·13 claims
- 1727US4853489ASelective chlorination of para-tertiary-butytolueneGONZENBACH HANS U·Filed 1983·Granted Aug 1, 1989·0 cites·7 claims
Join the waitlist — get patent alerts
Get an alert when Hans Ulrich Gonzenbach 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 →