Inventor · disambiguated record
Donald A. Keyworth
Also filed as: KEYWORTH DONALD A
16 granted patents·151 citations·filing 1973–1988
93Inventor score
Top patents by PatentIndex Score
16 records- 0195US4570026AProduction of isobutene from methyl tertiary butyl etherPETRO TEX CHEM CORP·Filed 1983·Granted Feb 11, 1986·57 cites·22 claims
- 0277US4571439AMethod for controlled oligomerization/etherification of propyleneTENNECO OIL CO·Filed 1985·Granted Feb 18, 1986·14 cites·15 claims
- 0375US3960910AProcess for the purification of gas streamsTENNECO CHEM·Filed 1975·Granted Jun 1, 1976·11 cites·5 claims
- 0473US4579990AProcess for the oligomerization of propyleneTENNECO OIL CO·Filed 1985·Granted Apr 1, 1986·11 cites·12 claims
- 0565US4540839AProcess for the production of polymer gasolinePETRO TEX CHEM CORP·Filed 1984·Granted Sep 10, 1985·16 cites·33 claims
- 0661US4014950AProcess for the purification of liquid sorbents comprising bimetallic salt complexesTENNECO CHEM·Filed 1975·Granted Mar 29, 1977·5 cites·7 claims
- 0749US4181536AProcess for the cleaning of fouled heat exchangers and other equipmentTENNECO CHEM·Filed 1978·Granted Jan 1, 1980·10 cites·7 claims
- 0843US4277567AFlame-retardant vinyl aromatic polymer compositionsTENNECO CHEM·Filed 1973·Granted Jul 7, 1981·4 cites·13 claims
- 0940US4816139AMethod for removing sulfur compounds from C6 and lower alkanesTENNECO OIL CO·Filed 1988·Granted Mar 28, 1989·7 cites·24 claims
- 1038US3981806AFlame-retardant emulsion containing 1,1,2,3,4,4-hexabromobutene-2TENNECO CHEM·Filed 1975·Granted Sep 21, 1976·3 cites·12 claims
- 1135US4153452ARecovery of metals from bimetallic salt complexesTENNECO CHEM·Filed 1978·Granted May 8, 1979·3 cites·10 claims
- 1232US4191588AMethod of cleaning fouled heat exchangers and other equipmentTENNECO CHEM·Filed 1979·Granted Mar 4, 1980·3 cites·10 claims
- 1331US4153669ARemoval of metals from waste materials that contain bimetallic salt complexesTENNECO CHEM·Filed 1978·Granted May 8, 1979·3 cites·10 claims
- 1431US3983216AProcess for the removal of vinyl chloride from gas streamsTENNECO CHEM·Filed 1975·Granted Sep 28, 1976·3 cites·7 claims
- 1529US4104146AProcess for the purification of gas streamsTENNECO CHEM·Filed 1975·Granted Aug 1, 1978·1 cites·4 claims
- 1629US4097451AFlame-retardant resinous compositionsTENNECO CHEM·Filed 1974·Granted Jun 27, 1978·0 cites·8 claims
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