Inventor · disambiguated record
Jack B. Macdonald
Also filed as: MACDONALD JACK B
3 granted patents·32 citations·filing 1989–1991
70Inventor score
Technology areasB41J
Files withSPECTRA INC3
Top patents by PatentIndex Score
3 records- 0164US5003322AHolt melt ink supply unitSPECTRA INC·Filed 1989·Granted Mar 26, 1991·13 cites·14 claims
- 0260US4864330AMethod of forming a hot melt ink unitSPECTRA INC·Filed 1989·Granted Sep 5, 1989·11 cites·2 claims
- 0346US5172135AHot melt ink supply unitSPECTRA INC·Filed 1991·Granted Dec 15, 1992·8 cites·7 claims
Join the waitlist — get patent alerts
Get an alert when Jack B. Macdonald 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 →