Inventor · disambiguated record
Chung-Ji Tschang
Also filed as: KLEFENZ HEINRICH · TSCHANG CHUNG-JI
18 granted patents·2 pending applications·661 citations·filing 1979–2003
95Inventor score
Top patents by PatentIndex Score
20 records- 0197US6271320B1Method for the production of a polymer dispersion by radical aqueous emulsion polymerization with a continuously produced aqueous monomer emulsionBASF AG·Filed 1997·Granted Aug 7, 2001·346 cites·20 claims
- 0294US4266030AMacroporous polymeric carrier for covalently binding proteins, its preparation and its use for fixing active proteinsBASF AG·Filed 1980·Granted May 5, 1981·75 cites·3 claims
- 0389US4551482AMacroporous, hydrophilic enzyme carrierBASF AG·Filed 1983·Granted Nov 5, 1985·47 cites·5 claims
- 0485US5994457APreparation of an aqueous polymer dispersionBASF AG·Filed 1995·Granted Nov 30, 1999·52 cites·56 claims
- 0581US4461832APreparation of an enzymatically active formulation embedded in silica gelBASF AG·Filed 1982·Granted Jul 24, 1984·38 cites·11 claims
- 0677US4658002APreparation of insoluble polymer powders which are only slightly swellableBASF AG·Filed 1985·Granted Apr 14, 1987·26 cites·14 claims
- 0769US4235973AMacroporous polymeric carrier for covalently binding proteins, its preparation and its use for fixing active proteinsBASF AG·Filed 1979·Granted Nov 25, 1980·12 cites·8 claims
- 0868US4837330APreparation of sulfatobetainesBASF AG·Filed 1988·Granted Jun 6, 1989·8 cites·9 claims
- 0965US5141662AHeat transfer fluids comprising oxyalkylenated polyolsDEXHEIMER EDWARD M·Filed 1991·Granted Aug 25, 1992·16 cites·5 claims
- 1055US4855423APreparation of sulfatobetainesBASF AG·Filed 1987·Granted Aug 8, 1989·4 cites·10 claims
- 1150US4647637APreparation of insoluble polymer powders which are only slightly swellableBASF AG·Filed 1985·Granted Mar 3, 1987·8 cites·14 claims
- 1244US4767707AImmobilization of enzymes with a water-soluble glycidyl etherBASF AG·Filed 1986·Granted Aug 30, 1988·6 cites·6 claims
- 1340US5445727AProduction of nickelized shaped articlesBASF AG·Filed 1993·Granted Aug 29, 1995·5 cites·5 claims
- 1439US2006148981A1Method for producing stable aqueous polymer dispersions based on conjugated alphatic dienes and vinyl aromatic compoundsBASF AG·Filed 2003·Application pending·0 cites
- 1537US4940609APolymeric conditioner for pretreating nonmetallic surfaces for chemical metallizationBASF AG·Filed 1988·Granted Jul 10, 1990·6 cites·12 claims
- 1635US2004048969A1Method for producing an aqueous polymer dispersion by means of radically initiated aqueous emulsion polymerisationFiled 2002·Application pending·0 cites
- 1734US4954369AChemical deposition of copper from alkaline aqueous bathsBASF AG·Filed 1989·Granted Sep 4, 1990·4 cites·3 claims
- 1833US5421990AProduction of shining shaped articles coated with zinc or a zinc alloyBASF AG·Filed 1992·Granted Jun 6, 1995·2 cites·5 claims
- 1933US4997680APolymeric conditioner for pretreating nonmetallic surfaces for chemical metallizationBASF AG·Filed 1988·Granted Mar 5, 1991·4 cites·8 claims
- 2031US5853900AAlkenylnitrile-containing binders for paper coating slipsBASF AG·Filed 1997·Granted Dec 29, 1998·2 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →