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USPTO Patent Rankings Data through Dec 31, 2025
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John Ugelstad — 14 Patents

SISintef: 7 patents #1 of 45Top 3%
SASinvent As: 2 patents #37 of 154Top 25%
TFThermo Fisher: 2 patents #950 of 2,015Top 50%
INInvitrogen: 1 patents #101 of 207Top 50%
NANorsk Hydro Asa: 1 patents #182 of 584Top 35%
Trondheim, NO: #38 of 1,229 inventorsTop 4%
Overall (All Time): #332,869 of 4,157,543Top 9%
14 Patents All Time
John Ugelstad has been granted 14 US patents while listed as an inventor at Sintef. The first was granted in 1980 and the most recent in April 2016. John Ugelstad ranks #332,869 of 4,157,543 US inventors in our database (top 8.0%). Patent records list John Ugelstad in Trondheim, NO.

Issued Patents All Time

Showing 1–14 of 14 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
9309368 Process for the preparation of monodisperse polymer particles Arne Jørgedal, Elin Aksnes, Geir Fonnum, Astrid Molteberg, Rolf Nordal +10 more 2016-04-12
8658733 Process for the preparation of monodisperse polymer particles Arne Jorgedal, Elin Aksnes, Geir Fonnum, Astrid Molteberg, Rolf Nordal +10 more 2014-02-25
7217762 Process for the preparation of monodisperse polymer particles Arne Jørgedal, Elin Aksnes, Geir Fonnum, Astrid Molteberg, Rolf Nordal +12 more 2007-05-15 $9,470,000
6228925 Two-stage seed swelling procedure for producing monodisperse PVC particles Steinar Pedersen, Arvid Berge, Harald Jacobsen, Kari-Anne Leth-Olsen, Bård S.ae butted.thre 2001-05-08 $3,755,000
5763203 Immobilization and separation of cells and other particles Per Stenstad, Lars Kilaas, Arvid Berge 1998-06-09
5677373 Process for preparing a dispersion and for preparing polymer particles Arvid Berge, Tom-Nils Nilsen, Jon-Olav Bj.o slashed.rgum 1997-10-14
4774265 Process for preparing magnetic polymer particles Turid Ellingsen, Arvid Berge, Oskar B. Helgee 1988-09-27
4654267 Magnetic polymer particles and process for the preparation thereof Turid Ellingsen, Arvid Berge, Oskar B. Helgee 1987-03-31
4563510 Process for the preparation of polymer latex 1986-01-07
4530956 Process for the preparation of aqueous dispersions of organic material and possible further conversion to a polymer dispersion when the organic material is a polymerizable monomer Arvid Berge 1985-07-23
4459378 Monodisperse polymer particles and dispersions thereof 1984-07-10
4336173 Process 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 monomer 1982-06-22
RE30582 Process for preparing latex 1981-04-21
4186120 Process for producing finely divided aqueous emulsions from materials of limited water solubility 1980-01-29