Inventor · disambiguated record
William H. Friend
Also filed as: FRIEND WILLIAM H
15 granted patents·219 citations·filing 1974–2000
94Inventor score
Top patents by PatentIndex Score
15 records- 0191US5863389APulp bleaching reactor for dispersing high consistency pulp into a gaseous bleaching agent containing ozoneUNION CAMP PATENT HOLDING·Filed 1994·Granted Jan 26, 1999·51 cites·23 claims
- 0280US5181989AReactor for bleaching high consistency pulp with ozoneUNION CAMP PATENT HOLDING·Filed 1990·Granted Jan 26, 1993·24 cites·29 claims
- 0376US5451296ATwo stage pulp bleaching reactorUNION CAMP PATENT HOLDING·Filed 1994·Granted Sep 19, 1995·20 cites·27 claims
- 0473US5174861AMethod of bleaching high consistency pulp with ozoneUNION CAMP PATENT HOLDING·Filed 1991·Granted Dec 29, 1992·22 cites·24 claims
- 0568US5409570AProcess for ozone bleaching of oxygen delignified pulp while conveying the pulp through a reaction zoneUNION CAMP PATENT HOLDING·Filed 1992·Granted Apr 25, 1995·20 cites·22 claims
- 0661US6315861B1Process for conditioning ozone gas recycle stream in ozone pulp bleachingUNION CAMP PATENT HOLDING·Filed 2000·Granted Nov 13, 2001·4 cites·15 claims
- 0756US5296097AMethod for reducing contaminants in pulp prior to ozone bleachingUNION CAMP PATENT HOLDING·Filed 1992·Granted Mar 22, 1994·10 cites·15 claims
- 0849US5520783AApparatus for bleaching high consistency pulp with ozoneUNION CAMP PATENT HOLDING·Filed 1993·Granted May 28, 1996·17 cites·20 claims
- 0947US5525195AProcess for high consistency delignification using a low consistency alkali pretreatmentUNION CAMP PATENT HOLDING·Filed 1993·Granted Jun 11, 1996·10 cites·21 claims
- 1047US5094718AMethod and apparatus for control of web flutterUNION CAMP CORP·Filed 1990·Granted Mar 10, 1992·10 cites·7 claims
- 1146US3930438AMethod for combining partition and box blank and for making a double wall thickness boxUNION CAMP CORP·Filed 1974·Granted Jan 6, 1976·11 cites·2 claims
- 1243US4989007APassive radar augmented projectile (PRAP)CA MINISTER NAT DEFENCE·Filed 1987·Granted Jan 29, 1991·9 cites·17 claims
- 1338US6126781AProcess for conditioning ozone gas recycle stream in ozone pulp bleachingUNION CAMP PATENT HOLDING·Filed 1991·Granted Oct 3, 2000·4 cites·19 claims
- 1435US5472572AReactor for bleaching high consistency pulp with ozoneUNION CAMP PATENT HOLDING·Filed 1992·Granted Dec 5, 1995·6 cites·35 claims
- 1531US5989388AMethod for ozone bleaching of high consistency pulp in two stagesUNION CAMP PATENT HOLDING·Filed 1994·Granted Nov 23, 1999·1 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →