Inventor · disambiguated record
William E. Spengler
Also filed as: SPENGLER WILLIAM · SPENGLER WILLIAM E
8 granted patents·265 citations·filing 1983–2002
89Inventor score
Top patents by PatentIndex Score
8 records- 0191US4940150AModular storage rackTOLCO CORP·Filed 1989·Granted Jul 10, 1990·87 cites·4 claims
- 0287US4537334APortable pressure sprayerTOLCO CORP·Filed 1983·Granted Aug 27, 1985·64 cites·50 claims
- 0377USD417151SCushion grip handleTOLCO CORP·Filed 1998·Granted Nov 30, 1999·22 cites·1 claims
- 0477US4606477APortable pressure sprayerTOLCO CORP·Filed 1985·Granted Aug 19, 1986·47 cites·34 claims
- 0568USD451388STrigger sprayerTOLCO CORP·Filed 2000·Granted Dec 4, 2001·16 cites·1 claims
- 0652US6655697B2Piston oil ring having land flanked by concave sidewallsDANA CORP·Filed 2002·Granted Dec 2, 2003·6 cites·14 claims
- 0750USD428811SNozzleTOLCO CORP·Filed 1999·Granted Aug 1, 2000·7 cites·1 claims
- 0840US5131572AJug and dispensing valveTOLCO CORP·Filed 1990·Granted Jul 21, 1992·16 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →