Inventor · disambiguated record
Gregory J. Engel
Also filed as: ENGEL GREGORY J
9 granted patents·4 pending applications·211 citations·filing 1994–2005
90Inventor score
Top patents by PatentIndex Score
13 records- 0184US5455985ASteerable side squeegeesTENNANT CO·Filed 1994·Granted Oct 10, 1995·60 cites·14 claims
- 0275US7086118B2Street sweeper with vacuumized dust controlTENNANT CO·Filed 2002·Granted Aug 8, 2006·17 cites·31 claims
- 0374US6428590B1Filter system for mobile debris collection machineTENNANT CO·Filed 2000·Granted Aug 6, 2002·34 cites·16 claims
- 0464US7520017B2Street sweeper recirculation flapTENNANT·Filed 2002·Granted Apr 21, 2009·13 cites·9 claims
- 0564US6966097B2Street sweeper with dust controlTENNANT CO·Filed 2002·Granted Nov 22, 2005·15 cites·24 claims
- 0660US5647093ASweeper with dual seal filterTENNANT CO·Filed 1996·Granted Jul 15, 1997·29 cites·13 claims
- 0757US6389641B1Dual mode debris pickup machineTENNANT CO·Filed 1998·Granted May 21, 2002·24 cites·26 claims
- 0851US2006048332A1Street sweeper with vacuumized dust controlENGEL GREGORY J·Filed 2005·Application pending·0 cites
- 0950US7124463B2Conveyor lip for motorized street sweeperTENNANT CO·Filed 2002·Granted Oct 24, 2006·6 cites·8 claims
- 1047US2004143928A1Street sweeper with vacuumized dust controlTENNANT CO·Filed 2004·Application pending·0 cites
- 1143US2006053582A1Street sweeper with dust controlENGEL GREGORY J·Filed 2005·Application pending·0 cites
- 1240US5996173AIncreased litter storage for vacuum trash collectorTENNANT CO·Filed 1998·Granted Dec 7, 1999·13 cites·7 claims
- 1340US2004045584A1Motorized street sweeperTENNANT·Filed 2002·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →