Inventor · disambiguated record
Gerhard Franz
Also filed as: FRANZ GERHARD · FRANZ GERHARD A · HOCKELE GUNTHER
29 granted patents·1 pending application·539 citations·filing 1965–2020
97Inventor score
Top patents by PatentIndex Score
30 records- 0192US4676838ALamellar iron oxide pigments, a process for the production thereof and the use thereofBAYER AG·Filed 1985·Granted Jun 30, 1987·47 cites·7 claims
- 0291US4922404AMethod and apparatus for gating of synchronous rectifierGEN ELECTRIC·Filed 1989·Granted May 1, 1990·93 cites·13 claims
- 0388US4404254AProduction of lamellar iron oxide pigmentsBAYER AG·Filed 1981·Granted Sep 13, 1983·34 cites·16 claims
- 0486US5195150AOptoelectronic device for outfeed and infeed of radiationSIEMENS AG·Filed 1992·Granted Mar 16, 1993·75 cites·20 claims
- 0584US5073848APower distribution systemGEN ELECTRIC·Filed 1990·Granted Dec 17, 1991·110 cites·4 claims
- 0681US4335018ACatalyst for the production of maleic anhydrideHUELS CHEMISCHE WERKE AG·Filed 1980·Granted Jun 15, 1982·14 cites·13 claims
- 0778US4681637AProcess for the production of yellow-brown zinc ferrite pigmentsBAYER AG·Filed 1985·Granted Jul 21, 1987·22 cites·10 claims
- 0871US5705025AMethod for dry etching of a semiconductor substrateSIEMENS AG·Filed 1995·Granted Jan 6, 1998·37 cites·8 claims
- 0969US4126748AProcess for the production of carboxylic acid esters by catalytic oxidation of alcoholsHUELS CHEMISCHE WERKE AG·Filed 1977·Granted Nov 21, 1978·9 cites·10 claims
- 1068US6475819B2Method for formation and production of matrices of high density light emitting diodesOSRAM OPTO SEMICONDUCTORS GMBH·Filed 2000·Granted Nov 5, 2002·15 cites·22 claims
- 1161US4948762AProcess for the preparation of finely divided carbides and nitrides from ceramic precursor-compoundsBAYER AG·Filed 1989·Granted Aug 14, 1990·14 cites·15 claims
- 1260US4053567AAluminum and magnesium perchlorate-hydrazine complexesALLIED CHEM·Filed 1965·Granted Oct 11, 1977·8 cites·16 claims
- 1352US4250119AProcess for the production of acetone from isobutyraldehydeHUELS CHEMISCHE WERKE AG·Filed 1978·Granted Feb 10, 1981·3 cites·13 claims
- 1451US4268448AProcess for the production of maleic anhydrideHUELS CHEMISCHE WERKE AG·Filed 1980·Granted May 19, 1981·3 cites·6 claims
- 1550US11337431B2Casing holding device for an apparatus for filling tubular casesVEMAG MASCHINENBAU GMBH·Filed 2020·Granted May 24, 2022·0 cites·18 claims
- 1647US5075091AProcess for the preparation of silicon nitrideBAYER AG·Filed 1989·Granted Dec 24, 1991·7 cites·6 claims
- 1746US5030434ASilicon nitride powders with improved surface properties and processes for their preparationBAYER AG·Filed 1990·Granted Jul 9, 1991·8 cites·4 claims
- 1844US5869736AOxidation in the Witten-Hercules process for preparing dimethyl terephthalateHUELS CHEMISCHE WERKE AG·Filed 1997·Granted Feb 9, 1999·3 cites·15 claims
- 1941US7008931B2Anti-inflammatory and healing medicine based on laminarin sulphateGOEMAR LAB SA·Filed 2001·Granted Mar 7, 2006·0 cites·12 claims
- 2040US6395309B1Use of an extract of Alchemilla vulgaris to inhibit angiogenesisWEBER & WEBER GMBH & CO KG·Filed 1998·Granted May 28, 2002·5 cites·18 claims
- 2139US4980322ASinterable SI3 N4 powders containing sintering additives and a process for their preparationBAYER AG·Filed 1989·Granted Dec 25, 1990·7 cites·5 claims
- 2239US4367362AProcess for the isomerization of N-alkenesHUELS CHEMISCHE WERKE AG·Filed 1981·Granted Jan 4, 1983·4 cites·13 claims
- 2338US5039632ASI C powder, a process for its production and its useBAYER AG·Filed 1989·Granted Aug 13, 1991·6 cites·10 claims
- 2436US4983371ASilicon nitride powder of low oxygen contentBAYER AG·Filed 1989·Granted Jan 8, 1991·4 cites·3 claims
- 2536US2005020072A1Means and method for patterning a substrate with a maskFiled 2001·Application pending·0 cites
- 2635US4798714AProcess for the preparation of silicon nitride low in carbon contentBAYER AG·Filed 1986·Granted Jan 17, 1989·4 cites·8 claims
- 2730US5066473ASilicon nitride powders of low isoelectric point and processes for their productionBAYER AG·Filed 1990·Granted Nov 19, 1991·1 cites·3 claims
- 2830US4845060ASinterable Si3 N4 powder and a process for its preparationBAYER AG·Filed 1987·Granted Jul 4, 1989·3 cites·7 claims
- 2929US5480570ALow coercive iron oxide pigments and a process for their preparationTODA KOGYO CORP·Filed 1994·Granted Jan 2, 1996·1 cites·2 claims
- 3028US4179476ASemi-continuous process for obtaining amino compoundsCIBA GEIGY CORP·Filed 1977·Granted Dec 18, 1979·2 cites·8 claims
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