Inventor · disambiguated record
John L. Ohlson
Also filed as: OHLSON JOHN L · OHLSON JOHN LEONARD
9 granted patents·116 citations·filing 1975–1982
88Inventor score
Files withGRACE W R & CO9
Top patents by PatentIndex Score
9 records- 0188US4069249AN,N-di-(hydroxybenzyl)-trimethylene diaminediacetic acidsGRACE W R & CO·Filed 1975·Granted Jan 17, 1978·23 cites·8 claims
- 0287US4225502AN,N'Di(hydroxybenzyl) 1,3-propanediamine N,N'-diacetonitrilesGRACE W R & CO·Filed 1977·Granted Sep 30, 1980·19 cites·1 claims
- 0385US4338460AProcess for preparing chelating agentsGRACE W R & CO·Filed 1980·Granted Jul 6, 1982·20 cites·7 claims
- 0485US3988367APreparation of N,N'-dicarboxymethyl-1,3-propanediaminesGRACE W R & CO·Filed 1975·Granted Oct 26, 1976·14 cites·15 claims
- 0582US4152345AMetal chelatesGRACE W R & CO·Filed 1978·Granted May 1, 1979·13 cites·12 claims
- 0673US4421826APolyurethane polymer amine salt as a dyeing aid, particularly for polyolefin fibersGRACE W R & CO·Filed 1982·Granted Dec 20, 1983·23 cites·18 claims
- 0752US4059548AHexahydropyrimidine-1,3-diacetonitriles and processes for preparing the sameGRACE W R & CO·Filed 1976·Granted Nov 22, 1977·2 cites·6 claims
- 0852US4058528A5-HydroxyhexahydropyrimidineGRACE W R & CO·Filed 1976·Granted Nov 15, 1977·2 cites·1 claims
- 0933US4058527APreparation of N,N'-Dicarboxymethyl-1,3-propanediaminesGRACE W R & CO·Filed 1976·Granted Nov 15, 1977·0 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →