Inventor · disambiguated record
Hermann Seifert
Also filed as: SCHWERDTEL WULF · SEIFERT HERMANN · WALDMANN HELMUT
24 granted patents·180 citations·filing 1975–2001
95Inventor score
Top patents by PatentIndex Score
24 records- 0190US4369096AProcess for the purification of epoxidesBAYER AG·Filed 1980·Granted Jan 18, 1983·23 cites·20 claims
- 0288US4113747AProcess for the preparation of propylene oxideBAYER AG·Filed 1976·Granted Sep 12, 1978·19 cites·32 claims
- 0386US4174460AProcess for the hydroxylation of phenols and phenol ethers in the nucleusBAYER AG·Filed 1977·Granted Nov 13, 1979·18 cites·15 claims
- 0483US4341709APreparation of ε-caprolactoneBAYER AG·Filed 1980·Granted Jul 27, 1982·15 cites·20 claims
- 0578US4360682AStabilizing caprolactones with dihydroxybenzenesDEGUSSA·Filed 1980·Granted Nov 23, 1982·10 cites·9 claims
- 0673US4137242AProcess for the preparation of propylene oxideBAYER AG·Filed 1976·Granted Jan 30, 1979·8 cites·32 claims
- 0771US4045496AProcess for the hydroxylation of phenols and phenol ethers in the nucleusBAYER AG·Filed 1975·Granted Aug 30, 1977·8 cites·20 claims
- 0867US6124504AProcess for preparing 4-hydroxyanilinesBAYER AG·Filed 1997·Granted Sep 26, 2000·10 cites·14 claims
- 0966US4324925AProcess for the preparation of polyhydric phenolsBAYER AG·Filed 1980·Granted Apr 13, 1982·8 cites·15 claims
- 1065US4053523AProcess for the hydroxylation of phenolBAYER AG·Filed 1975·Granted Oct 11, 1977·11 cites·14 claims
- 1163US4059619AProcess for the preparation of percarboxylic acid solutionsDEGUSSA·Filed 1976·Granted Nov 22, 1977·6 cites·17 claims
- 1262US6211379B1Process for preparing heterocyclic compoundsBAYER AG·Filed 2000·Granted Apr 3, 2001·2 cites·2 claims
- 1359US4344897AProcess for the preparation of percarboxylic acid solutionsBAYER AG·Filed 1979·Granted Aug 17, 1982·5 cites·15 claims
- 1458US6667401B2Method for producing heterocyclic compoundsBAYER AG·Filed 2001·Granted Dec 23, 2003·1 cites·8 claims
- 1556US4387252AProcess for the preparation of polyhydric phenolsBAYER AG·Filed 1980·Granted Jun 7, 1983·5 cites·3 claims
- 1656US4088679AProcess for the preparation of perpropionic acid solutionsDEGUSSA·Filed 1976·Granted May 9, 1978·4 cites·7 claims
- 1754US5948930AProcess for preparing O-alkyl, O-alkylphosphorochloridothioatesBAYER AG·Filed 1997·Granted Sep 7, 1999·7 cites·10 claims
- 1854US5162529AProcess for the preparation of 5-hydroxy-3,4,5,6-tetrahydro-pyrimidine derivativesBAYER AG·Filed 1991·Granted Nov 10, 1992·4 cites·7 claims
- 1954US4214105AProcess for the hydroxylation of phenolBAYER AG·Filed 1978·Granted Jul 22, 1980·7 cites·14 claims
- 2053US4182917AProcess for the preparation of polyhydric phenolsBAYER AG·Filed 1977·Granted Jan 8, 1980·3 cites·20 claims
- 2151US4182918AProcess for the preparation of polyhydric phenolsBAYER AG·Filed 1977·Granted Jan 8, 1980·3 cites·19 claims
- 2251US4087454AProcess for the preparation of perpropionic acid solutionsDEGUSSA·Filed 1976·Granted May 2, 1978·3 cites·6 claims
- 2331US4212809AProcess for the preparation of 5-(oxiranylmethyl)-1,3-benzodioxoleBAYER AG·Filed 1978·Granted Jul 15, 1980·0 cites·13 claims
- 2426US4537730APreparation of O,S-dimethyl-thiolophosphoric acid amideBAYER AG·Filed 1983·Granted Aug 27, 1985·0 cites·18 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →