Inventor · disambiguated record
Nicholas M. Karayannis
Also filed as: KARAYANNIS NICHOLAS M
29 granted patents·1,074 citations·filing 1971–1993
97Inventor score
Top patents by PatentIndex Score
29 records- 0196US4866022AOlefin polymerization catalystAMOCO CORP·Filed 1988·Granted Sep 12, 1989·151 cites·30 claims
- 0296US4657882ASupported olefin polymerization catalyst produced from a magnesium alkyl/organophosphoryl complexAMOCO CORP·Filed 1985·Granted Apr 14, 1987·194 cites·27 claims
- 0396US4581342ASupported olefin polymerization catalystSTANDARD OIL CO INDIANA·Filed 1984·Granted Apr 8, 1986·194 cites·26 claims
- 0494US4946816AMorphology-controlled olefin polymerization catalystAMOCO CORP·Filed 1989·Granted Aug 7, 1990·77 cites·20 claims
- 0591US5013702AOlefin polymerization catalystAMOCO CORP·Filed 1989·Granted May 7, 1991·58 cites·5 claims
- 0691US4988656AOlefin polymerization catalystAMOCO CORP·Filed 1989·Granted Jan 29, 1991·59 cites·18 claims
- 0788US4256866APolymerization processSTANDARD OIL CO INDIANA·Filed 1976·Granted Mar 17, 1981·35 cites·4 claims
- 0888US3984350ACatalyst component comprising brown titanium trichlorideSTANDARD OIL CO INDIANA·Filed 1975·Granted Oct 5, 1976·42 cites·54 claims
- 0986US5218052AOlefin polymerization and copolymerization processAMOCO CORP·Filed 1991·Granted Jun 8, 1993·55 cites·24 claims
- 1083US5332707AOlefin polymerization and copolymerization catalystAMOCO CORP·Filed 1992·Granted Jul 26, 1994·43 cites·20 claims
- 1168US4276191ACatalyst and process for polymerization of alpha-olefinsSTANDARD OIL CO INDIANA·Filed 1979·Granted Jun 30, 1981·14 cites·6 claims
- 1267US4189556APolymerization processSTANDARD OIL CO INDIANA·Filed 1976·Granted Feb 19, 1980·12 cites·9 claims
- 1367US3950268ACatalyst for the polymerization of olefinsSTANDARD OIL CO·Filed 1974·Granted Apr 13, 1976·11 cites·4 claims
- 1465US4324690AAlpha-olefin polymerization catalystSTANDARD OIL CO INDIANA·Filed 1980·Granted Apr 13, 1982·15 cites·17 claims
- 1564US4184987AStabilizing additives for polyolefinsSTANDARD OIL CO INDIANA·Filed 1978·Granted Jan 22, 1980·11 cites·26 claims
- 1664US4015060ACatalyst and process for the polymerization of olefinsSTANDARD OIL CO INDIANA·Filed 1971·Granted Mar 29, 1977·10 cites·1 claims
- 1759US4317898ACatalyst and process for the polymerization of olefinsSTANDARD OIL CO INDIANA·Filed 1981·Granted Mar 2, 1982·11 cites·5 claims
- 1857US4526882AMixed ester retreated propylene polymerization catalystSTANDARD OIL CO INDIANA·Filed 1983·Granted Jul 2, 1985·10 cites·20 claims
- 1956US4431571ARetreating comminuted olefin polymerization catalyst with a titanium(IV) compound, a haloalkylchlorosilane and an esterSTANDARD OIL CO INDIANA·Filed 1982·Granted Feb 14, 1984·9 cites·43 claims
- 2053US4277370AAlpha-olefin polymerization catalystSTANDARD OIL CO INDIANA·Filed 1980·Granted Jul 7, 1981·9 cites·79 claims
- 2152US6051524AOlefin polymerization and copolymerization catalystBP AMOCO CORP·Filed 1993·Granted Apr 18, 2000·9 cites·20 claims
- 2250US4431572ARetreating comminuted olefin polymerization catalyst with a titanium (IV) compound, a chlorocarbon and an esterSTANDARD OIL CO INDIANA·Filed 1982·Granted Feb 14, 1984·7 cites·43 claims
- 2348US5223466AOlefin polymerization and copolymerization catalystAMOCO CORP·Filed 1992·Granted Jun 29, 1993·12 cites·19 claims
- 2444US5227354AOlefin polymerization and copolymerization catalystAMOCO CORP·Filed 1992·Granted Jul 13, 1993·6 cites·19 claims
- 2544US4111836AProcess for forming high performance titanium trichloride olefin polymerization catalyst componentsSTANDARD OIL CO INDIANA·Filed 1976·Granted Sep 5, 1978·5 cites·9 claims
- 2643US4353813ACatalyst for polymerization of alpha-olefinsSTANDARD OIL CO INDIANA·Filed 1980·Granted Oct 12, 1982·5 cites·8 claims
- 2743US4258168APolymerization processSTANDARD OIL CO INDIANA·Filed 1976·Granted Mar 24, 1981·4 cites·8 claims
- 2838US3962203ADechlorination of high yield polyolefins using neutral phosphoryl estersSTANDARD OIL CO·Filed 1974·Granted Jun 8, 1976·3 cites·14 claims
- 2937US4222893AProcess for forming high performance titanium trichloride olefin polymerization catalyst componentsSTANDARD OIL CO INDIANA·Filed 1978·Granted Sep 16, 1980·3 cites·8 claims
Join the waitlist — get patent alerts
Get an alert when Nicholas M. Karayannis files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →