Inventor · disambiguated record
Robert B. Koolstra
Also filed as: KOOLSTRA ROBERT B
3 granted patents·50 citations·filing 1989–1991
68Inventor score
Files withDUPHAR INT RES3
Top patents by PatentIndex Score
3 records- 0183US5252191AMethod for the photochemical isomerization of organic compounds under the influence of a photosensitizerDUPHAR INT RES·Filed 1991·Granted Oct 12, 1993·38 cites·3 claims
- 0257US5035783AMethod for the photochemical conversion of tachysterol compounds into previtamin D compounds and of trans-vitamin D compounds into cis-vitamin D compoundsDUPHAR INT RES·Filed 1989·Granted Jul 30, 1991·12 cites·9 claims
- 0325US5175217AMethod for the photochemical conversion of tachysterol compounds into previtamin D compounds and of trans-vitamin D compounds into cis-vitamin D compounds using a polymeric photoinitiatorDUPHAR INT RES·Filed 1990·Granted Dec 29, 1992·0 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →