Inventor · disambiguated record
Kryn G. Ihrman
Also filed as: BRANDT MANUEL · IHRMAN KRYN G
13 granted patents·77 citations·filing 1976–1992
90Inventor score
Files withETHYL CORP13
Top patents by PatentIndex Score
13 records- 0183US4066562AAntioxidantETHYL CORP·Filed 1976·Granted Jan 3, 1978·18 cites·16 claims
- 0262US5204307AProcess for alkylation of aromatic diaminesETHYL CORP·Filed 1992·Granted Apr 20, 1993·7 cites·2 claims
- 0360US4219502AAromatic amine alkylation processETHYL CORP·Filed 1979·Granted Aug 26, 1980·5 cites·6 claims
- 0458US4440952A1-Methyl-2,6-diamino-3-isopropyl benzeneETHYL CORP·Filed 1982·Granted Apr 3, 1984·5 cites·1 claims
- 0557US4317931AProcess for rearrangement of alkyl groups on aromatic aminesETHYL CORP·Filed 1981·Granted Mar 2, 1982·5 cites·11 claims
- 0653US4314962APhenol extended polyurethanes prepared by RIM processETHYL CORP·Filed 1980·Granted Feb 9, 1982·17 cites·3 claims
- 0750US4459399APolyurethanes and process thereforETHYL CORP·Filed 1982·Granted Jul 10, 1984·9 cites·7 claims
- 0849US4611045AMonoalkylation of 1-alkyl-diaminobenzenesETHYL CORP·Filed 1984·Granted Sep 9, 1986·3 cites·1 claims
- 0938US4341903AProcess for rearrangement of alkyl groups on aromatic aminesETHYL CORP·Filed 1981·Granted Jul 27, 1982·1 cites·11 claims
- 1036US4604484AMonoalkylation of 1-alkyl-diaminobenzenesETHYL CORP·Filed 1982·Granted Aug 5, 1986·1 cites·10 claims
- 1135US5103059AProcess for alkylation of aromatic diaminesETHYL CORP·Filed 1990·Granted Apr 7, 1992·4 cites·14 claims
- 1234US5057625ASelective alkylation processETHYL CORP·Filed 1990·Granted Oct 15, 1991·1 cites·16 claims
- 1331US4104255AThioether bis phenolic antioxidantsETHYL CORP·Filed 1977·Granted Aug 1, 1978·1 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →