Inventor · disambiguated record
Friedrich-Wilhelm Ullrich
Also filed as: ULLRICH FRIEDRICH-WILHELM
6 granted patents·2 pending applications·36 citations·filing 1990–2002
77Inventor score
Top patents by PatentIndex Score
8 records- 0182US5030747AProcess for the preparation of μ-amino-acrylic acid estersBAYER AG·Filed 1990·Granted Jul 9, 1991·28 cites·20 claims
- 0248US5994561AProcess for the preparation of aromatic maleimidesRHEIN CHEMIE RHEINAU GMBH·Filed 1999·Granted Nov 30, 1999·4 cites·3 claims
- 0337US6500988B1Method for producing aryl thiols by hydrogenating diaryldisulphidesBAYER AG·Filed 1998·Granted Dec 31, 2002·1 cites·10 claims
- 0437US5179211AProcess for the preparation of indolesBAYER AG·Filed 1991·Granted Jan 12, 1993·2 cites·17 claims
- 0534US6552230B1Method for preparing 2-nitro-5-(phenylthio)-anilinesBAYER AG·Filed 1999·Granted Apr 22, 2003·1 cites·9 claims
- 0634US2002062043A1Process for preparing optionally substituted biphenylcarbonyl chloridesFiled 2001·Application pending·0 cites
- 0733US2003120114A1Preparation of fluorophenylhydrazines and salts thereofFiled 2002·Application pending·0 cites
- 0831US6271415B1S-(4-biphenyl)-thiosulphuric acids and their salts, method for producing the same and method for producing 4-mercaptobiphenylsBAYER AG·Filed 1998·Granted Aug 7, 2001·0 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →