Inventor · disambiguated record
Karl E. Wiegand
Also filed as: DAGANI MICHAEL J · WIEGAND KARL E
18 granted patents·197 citations·filing 1973–1996
94Inventor score
Top patents by PatentIndex Score
18 records- 0191US5847177AProduction of hydrocarbon-soluble hydrocarbylaluminoxanesALBEMARLE CORP·Filed 1996·Granted Dec 8, 1998·56 cites·31 claims
- 0291US4595742ADi(alkylthio)diamine chain extenders for polyurethane elastomersETHYL CORP·Filed 1985·Granted Jun 17, 1986·49 cites·30 claims
- 0373US4070394ACarnitine nitrile halide preparationETHYL CORP·Filed 1977·Granted Jan 24, 1978·9 cites·10 claims
- 0472US4187230APreparation of 5-aroyl-pyrrole compoundsETHYL CORP·Filed 1977·Granted Feb 5, 1980·7 cites·23 claims
- 0567US4870191ASilicon containing reaction productETHYL CORP·Filed 1988·Granted Sep 26, 1989·7 cites·5 claims
- 0666US4917045ASilicon compounds in poultry hatchingETHYL CORP·Filed 1988·Granted Apr 17, 1990·14 cites·11 claims
- 0757US5565395AAluminoxanate compositionsALBEMARLE CORP·Filed 1995·Granted Oct 15, 1996·15 cites·20 claims
- 0857US4113771AProcess for the purification of citric acidETHYL CORP·Filed 1977·Granted Sep 12, 1978·5 cites·3 claims
- 0953US3965168A3-Carbamoyl-3-hydroxyglutaric acid and saltsETHYL CORP·Filed 1975·Granted Jun 22, 1976·3 cites·5 claims
- 1051US4008271AProcess for preparing a mixed anhydride of a sulfonic acid and a carboxylic acidETHYL CORP·Filed 1975·Granted Feb 15, 1977·3 cites·8 claims
- 1149US4374256AProcess for the preparation of pyrryl-2-acetonitrileETHYL CORP·Filed 1979·Granted Feb 15, 1983·2 cites·6 claims
- 1248US5252345AZeolite compositionsETHYL CORP·Filed 1991·Granted Oct 12, 1993·14 cites·20 claims
- 1347US3960941A3-Hydroxy-3,4-dicarbamoylbutyric acid and saltsETHYL CORP·Filed 1975·Granted Jun 1, 1976·2 cites·5 claims
- 1438US5183061ASilicon compounds in bone treatmentETHYL CORP·Filed 1991·Granted Feb 2, 1993·6 cites·21 claims
- 1538US3962287AChemical process for producing citric acidETHYL CORP·Filed 1973·Granted Jun 8, 1976·1 cites·22 claims
- 1632US3935216APreparation of toluoyl-5-pyrryl-2-acetonitrileETHYL CORP·Filed 1974·Granted Jan 27, 1976·0 cites·6 claims
- 1728US4954448AModulation of adenylate cyclase responseNELSON RES & DEV·Filed 1988·Granted Sep 4, 1990·4 cites·7 claims
- 1825US4066688AChemical processETHYL CORP·Filed 1973·Granted Jan 3, 1978·0 cites·31 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →