Inventor · disambiguated record
Othmar Stelzer
Also filed as: STELZER OTHMAR
6 granted patents·47 citations·filing 1989–1998
79Inventor score
Top patents by PatentIndex Score
6 records- 0176US5925785ASecondary and tertiary phosphines and processes for their preparationCELANESE GMBH·Filed 1997·Granted Jul 20, 1999·24 cites·9 claims
- 0268US6011172AProcess for alkylating elemental phosphorusCLARIANT GMBH·Filed 1998·Granted Jan 4, 2000·13 cites·13 claims
- 0351US5268479AProcess for the preparation of tertiary phosphinesHOECHST AG·Filed 1992·Granted Dec 7, 1993·6 cites·6 claims
- 0449US5003108AProcess for the preparation of phosphanesHOECHST AG·Filed 1989·Granted Mar 26, 1991·4 cites·10 claims
- 0524US6300517B1Phosphine ligands with amino acid groups, method for their production and use thereof as catalyst componentsCELANESE GMBH·Filed 1998·Granted Oct 9, 2001·0 cites·10 claims
- 0619US6187953B1Guanidinium phosphanes, their production and their useCELANESE GMBH·Filed 1998·Granted Feb 13, 2001·0 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →