Inventor · disambiguated record
David R. Hult
Also filed as: HULT DAVID R
19 granted patents·728 citations·filing 1974–1999
96Inventor score
Top patents by PatentIndex Score
19 records- 0195USD386842SPortable electric tool vacEMERSON ELECTRIC CO·Filed 1996·Granted Nov 25, 1997·56 cites·1 claims
- 0293USD443739SCombined wet and dry vacuum cleanerEMERSON ELECTRIC CO·Filed 1998·Granted Jun 12, 2001·48 cites·1 claims
- 0393US4920608APortable hand held vacuum cleanerEMERSON ELECTRIC CO·Filed 1988·Granted May 1, 1990·93 cites·24 claims
- 0490USD447609SCombined wet/dry vacuum cleaner dolly and accessory storage unitEMERSON ELECTRIC CO·Filed 1998·Granted Sep 4, 2001·37 cites·1 claims
- 0588US5025529APortable hand held vacuum cleanerEMERSON ELECTRIC CO·Filed 1990·Granted Jun 25, 1991·71 cites·2 claims
- 0684USD392780SVacuum cleaner nozzleEMERSON ELECTRIC CO·Filed 1997·Granted Mar 24, 1998·27 cites·1 claims
- 0781US3961921AVacuum cleaner with an impermeable collector bagVERNCO CORP·Filed 1974·Granted Jun 8, 1976·48 cites·13 claims
- 0877US5733351ATwo stage vacuum cleaner filterEMERSON ELECTRIC CO·Filed 1996·Granted Mar 31, 1998·54 cites·10 claims
- 0977US4993106APortable hand held vacuum cleanerEMERSON ELECTRIC CO·Filed 1989·Granted Feb 19, 1991·40 cites·4 claims
- 1074US5487213AMethod of assembling an electric motorEMERSON ELECTRIC CO·Filed 1994·Granted Jan 30, 1996·37 cites·6 claims
- 1173US4864681AMulti-purpose floor cleaning toolEMERSON ELECTRIC CO·Filed 1988·Granted Sep 12, 1989·36 cites·11 claims
- 1272US6237187B1Wet/dry vacuum dollyEMERSON ELECTRIC CO·Filed 1999·Granted May 29, 2001·33 cites·34 claims
- 1371US4888849AWheeled hand cart for wet/dry utility vacuum cleanerEMERSON ELECTRIC CO·Filed 1988·Granted Dec 26, 1989·34 cites·17 claims
- 1468US6115881ASecure hose locking deviceEMERSON ELECTRIC CO·Filed 1998·Granted Sep 12, 2000·34 cites·10 claims
- 1561US5419007ASnap together wet nozzleEMERSON ELECTRIC CO·Filed 1993·Granted May 30, 1995·30 cites·9 claims
- 1652US5765257AMufflerEMERSON ELECTRIC CO·Filed 1996·Granted Jun 16, 1998·22 cites·15 claims
- 1745USD311797SVacuum cleaner squeegee attachmentEMERSON ELECTRIC CO·Filed 1988·Granted Oct 30, 1990·4 cites·1 claims
- 1842US6347429B1Wet/dry vacuum drain systemEMERSON ELECTRIC CO·Filed 1999·Granted Feb 19, 2002·11 cites·18 claims
- 1942US5996170AWet/dry vacuum with non-cylindrical canisterEMERSON ELECTRIC CO·Filed 1998·Granted Dec 7, 1999·13 cites·16 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →