Inventor · disambiguated record
Donald W. Buchanan, Jr.
Also filed as: BUCHANAN DONALD · BUCHANAN DONALD W · BUCHANAN JR DONALD W
5 granted patents·1 pending application·97 citations·filing 1990–2004
80Inventor score
Top patents by PatentIndex Score
6 records- 0177US6881382B2Fragrance signaling of an eventINT FLAVORS & FRAGRANCES INC·Filed 2002·Granted Apr 19, 2005·30 cites·19 claims
- 0273US5347021AProcess of vapor phase catalytic hydrogenation of maleic anhydride to gamma-butyrolactone in high conversion and high selectivity using an activated catalystISP INVESTMENTS INC·Filed 1991·Granted Sep 13, 1994·35 cites·15 claims
- 0370US5122495AActivated catalyst for the vapor phase hydrogenation of maleic anhydride to gamma-butyrolactone in high conversion and high selectivityISP INVESTMENTS INC·Filed 1991·Granted Jun 16, 1992·30 cites·9 claims
- 0447US2004146435A1Fragrance signaling of an eventFiled 2004·Application pending·0 cites
- 0541US5041564AVapor phase process for production of gamma-butyrolactoneGAF CHEMICALS CORP·Filed 1990·Granted Aug 20, 1991·2 cites·15 claims
- 0626US5136058AProcess for the recovery of purified gamma-butyrolactone in high yield from its crude reactor effluentISP INVESTMENTS INC·Filed 1991·Granted Aug 4, 1992·0 cites·8 claims
Join the waitlist — get patent alerts
Get an alert when Donald W. Buchanan, Jr. 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 →