Inventor · disambiguated record
Erich Hammerschmidt
Also filed as: HAMMERSCHMIDT ERICH
9 granted patents·1 pending application·17 citations·filing 1982–2001
81Inventor score
Top patents by PatentIndex Score
10 records- 0161US6458954B2Process for preparing piperidinesBAYER AG·Filed 2001·Granted Oct 1, 2002·2 cites·8 claims
- 0253US4835243AThermotropic aromatic polymers with high elongation at break, processes for their preparation and their use for the production of moulded articles, filaments, fibres and filmsECKHARDT VOLKER·Filed 1988·Granted May 30, 1989·10 cites·7 claims
- 0352US4795596A1-Aminomethylnaphthalene-6-sulphonic acid, its preparation and its useBAYER AG·Filed 1987·Granted Jan 3, 1989·3 cites·1 claims
- 0438US4427601AProcess for preparing 1-amino-2-naphthol-4-sulphonic acid (amidol acid)BAYER AG·Filed 1982·Granted Jan 24, 1984·1 cites·10 claims
- 0535US4426333AProcess for the preparation of 1-benzoylamino-8-hydroxynaphthalene-4,6-disulphonic acid (benzoyl-K acid)BAYER AG·Filed 1982·Granted Jan 17, 1984·1 cites·10 claims
- 0633US4874892AProcess for the preparation of 6-hydroxynaphthalene-1-carboxylic from 1-aminomethylnaphthalene-6-sulphonic acidBAYER AG·Filed 1988·Granted Oct 17, 1989·0 cites·6 claims
- 0730US4705652ATetra-alkali metal salts of chromotropic acid, a process for their isolation and their useBAYER AG·Filed 1986·Granted Nov 10, 1987·0 cites·6 claims
- 0829US4806619AThermotropic aromatic polyesters having a high deflection temperature under load and excellent mechanical properties, a process for their preparation and their use for the production of moldings, filaments, fibres and filmsBAYER AG·Filed 1986·Granted Feb 21, 1989·0 cites·8 claims
- 0929US2002016462A1Process for preparing basic organic nitrogen-containing compounds by reduction with lithium aluminum hydrideFiled 2001·Application pending·0 cites
- 1028US5869735AProcess for the preparation of alkyl aryl ethers containing carboxyl groupsBAYER AG·Filed 1996·Granted Feb 9, 1999·0 cites·11 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →