Inventor · disambiguated record
John Ugelstad
Also filed as: UGELSTAD JOHN · VANDERHOFF JOHN W
15 granted patents·3 pending applications·1,300 citations·filing 1977–2015
96Inventor score
Top patents by PatentIndex Score
18 records- 0197US4459378AMonodisperse polymer particles and dispersions thereofSINTEF·Filed 1982·Granted Jul 10, 1984·158 cites·19 claims
- 0297US4336173AProcess for preparing an aqueous emulsion or dispersion of a partly water-soluble material, and optionally further conversion of the prepared dispersion or emulsion to a polymer dispersion when the partly water-soluble material is a polymerizable monomerSINTEF·Filed 1980·Granted Jun 22, 1982·209 cites·32 claims
- 0396US4654267AMagnetic polymer particles and process for the preparation thereofSINTEF·Filed 1983·Granted Mar 31, 1987·276 cites·9 claims
- 0495US4177177APolymer emulsification processEL AASSER MOHAMED S·Filed 1978·Granted Dec 4, 1979·140 cites·28 claims
- 0593US8658733B2Process for the preparation of monodisperse polymer particlesLIFE TECHNOLOGIES AS·Filed 2012·Granted Feb 25, 2014·49 cites·18 claims
- 0693US7217762B1Process for the preparation of monodisperse polymer particlesINVITROGEN CORP·Filed 2000·Granted May 15, 2007·73 cites·98 claims
- 0793US4774265AProcess for preparing magnetic polymer particlesSINTEF·Filed 1986·Granted Sep 27, 1988·123 cites·12 claims
- 0892US4530956AProcess for the preparation of aqueous dispersions of organic material and possible further conversion to a polymer dispersion when the organic material is a polymerizable monomerSINTEF·Filed 1982·Granted Jul 23, 1985·68 cites·10 claims
- 0990US4186120AProcess for producing finely divided aqueous emulsions from materials of limited water solubilitySINTEF·Filed 1977·Granted Jan 29, 1980·45 cites·5 claims
- 1088US4563510AProcess for the preparation of polymer latexSINTEF·Filed 1984·Granted Jan 7, 1986·43 cites·15 claims
- 1180US5763203AImmobilization and separation of cells and other particlesSINVENT AS·Filed 1994·Granted Jun 9, 1998·51 cites·17 claims
- 1279US4113687AProcess for preparing latexSINTEF·Filed 1977·Granted Sep 12, 1978·19 cites·21 claims
- 1378US5677373AProcess for preparing a dispersion and for preparing polymer particlesSINVENT AS·Filed 1992·Granted Oct 14, 1997·36 cites·10 claims
- 1471US9309368B2Process for the preparation of monodisperse polymer particlesLIFE TECHNOLOGIES AS·Filed 2014·Granted Apr 12, 2016·1 cites·27 claims
- 1559US2016075800A1Process for the preparation of monodisperse polymer particlesBERGE ARVID·Filed 2015·Application pending·0 cites
- 1659US2010099803A1Process for the preparation of monodisperse polymer particlesLIFE TECHNOLOGIES CORP·Filed 2009·Application pending·0 cites
- 1754US2007265390A1Process for the preparation of monodisperse polymer particlesINVITROGEN DYNAL AS·Filed 2007·Application pending·0 cites
- 1837US6228925B1Two-stage seed swelling procedure for producing monodisperse PVC particlesNORSK HYDRO AS·Filed 1997·Granted May 8, 2001·9 cites·11 claims
Join the waitlist — get patent alerts
Get an alert when John Ugelstad 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 →