Inventor · disambiguated record
Helmut Bonnemann
Also filed as: BOENNEMANN HELMUT · BOENNEMANN HELMUT DR · BONNEMANN HELMUT
15 granted patents·2 pending applications·280 citations·filing 1975–2003
93Inventor score
Files withSTUDIENGESELLSCHAFT KOHLE MBH16
Top patents by PatentIndex Score
17 records- 0184US4469638AProduction of transition metal complexesSTUDIENGESELLSCHAFT KOHLE MBH·Filed 1983·Granted Sep 4, 1984·13 cites·6 claims
- 0281US6090746AProcess for producing tenside-stabilized colloids of mono- and bimetals of the group VIII and Ib of the periodic system in the form of precursors for catalysts which are isolable and water soluble at high concentrationSTUDIENGESELLSCHAFT KOHLE MBH·Filed 1995·Granted Jul 18, 2000·64 cites·25 claims
- 0378US6531304B1Method for modifying the dispersion characteristics of metal organic-prestabilized or pre-treated nanometal colloidsSTUDIENGESELLSCHAFT KOHLE MBH·Filed 1999·Granted Mar 11, 2003·44 cites·25 claims
- 0477US5641723AProcess for the preparation of highly active doped metal supported catalystsSTUDIENGESELLSCHAFT KOHLE MBH·Filed 1992·Granted Jun 24, 1997·47 cites·12 claims
- 0577US4556719AProduction of transition metal complexesSTUDIENGESELLSCHAFT KOHLE MBH·Filed 1984·Granted Dec 3, 1985·9 cites·24 claims
- 0676US5580492AMicrocrystalline-to-amorphous metal and/or alloy powders dissolved without protective colloid in organic solventsSTUDIENGESELLSCHAFT KOHLE MBH·Filed 1993·Granted Dec 3, 1996·36 cites·11 claims
- 0775US4006149ACatalytic production of pyridines from alkynes and nitrilesSTUDIENGESELLSCHAFT KOHLE MBH·Filed 1975·Granted Feb 1, 1977·30 cites·7 claims
- 0873US4266061AProcess for preparation of 2-vinylpyridine from acetylene and acrylonitrileSTUDIENGESELLSCHAFT KOHLE MBH·Filed 1979·Granted May 5, 1981·6 cites·9 claims
- 0963US4267329AProcess for preparation of 2-vinylpyridine from acetylene and acrylonitrileSTUDIENGESELLSCHAFT KOHLE MBH·Filed 1980·Granted May 12, 1981·4 cites·3 claims
- 1061US4713110AProcess for preparing finely divided metal powdersSTUDIENGESELLSCHAFT KOHLE MBH·Filed 1986·Granted Dec 15, 1987·11 cites·12 claims
- 1150US4588815AMethod for manufacturing pyridine and pyridine derivatives from alkynes and cyano compounds in the presence of complex cobalt or rhodium compounds with ligands containing boronSTUDIENGESELLSCHAFT KOHLE MBH·Filed 1984·Granted May 13, 1986·2 cites·36 claims
- 1246US5308377AProcess for preparing microcrystalline-to-amorphous metal and/or alloy powders and metals and/or alloys dissolved without protective colloid in organic solventsSTUDIENGESELLSCHAFT KOHLE MBH·Filed 1990·Granted May 3, 1994·10 cites·11 claims
- 1342US2003098437A1Anticorrosive magnetic nanocolloids protected by precious metalsFiled 2002·Application pending·0 cites
- 1437US2006037434A1Monodispersable magnetic nanocolloids having an adjustable size and method for the production thereofSTUDIENGESELLSCHAFT KOHLE MBH·Filed 2003·Application pending·0 cites
- 1536US6491842B1Anticorrosive magnetic nanocolloids protected by precious metalsSTUDIENGESELLSCHAFT KOHLE MBH·Filed 1999·Granted Dec 10, 2002·4 cites·5 claims
- 1628US5240515AAcicular iron-magnet pigments having an adjustable coercive field strength and process for producing sameSTUDIENGESELLSCHAFT KOHLE MBH·Filed 1992·Granted Aug 31, 1993·0 cites·6 claims
- 1727US5053075AAcicular iron-magnet pigments having an adjustable coercive field strength and process for producing sameSTUDIENGESELLSCHAFT KOHLE MBH·Filed 1990·Granted Oct 1, 1991·0 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →