Inventor · disambiguated record
Darwin S. Crouser
Also filed as: CROUSER DARWIN S
17 granted patents·671 citations·filing 1989–1999
96Inventor score
Technology areasA47L
Files withHOOVER CO17
Top patents by PatentIndex Score
17 records- 0192US5493752AUpright carpet and upholstery extractorHOOVER CO·Filed 1994·Granted Feb 27, 1996·74 cites·28 claims
- 0288US5761763AUpright carpet extractorHOOVER CO·Filed 1996·Granted Jun 9, 1998·71 cites·45 claims
- 0386US5615448AConvertible upright carpet extractorHOOVER CO·Filed 1996·Granted Apr 1, 1997·59 cites·11 claims
- 0486US5455983AWet/dry utility vacuum cleanerHOOVER CO·Filed 1993·Granted Oct 10, 1995·57 cites·22 claims
- 0583US5608945AWet/dry utility vacuum cleanerHOOVER CO·Filed 1995·Granted Mar 11, 1997·56 cites·23 claims
- 0681US6009593ACarpet extractor brush assemblyHOOVER CO·Filed 1996·Granted Jan 4, 2000·50 cites·19 claims
- 0775US5443362AAir turbineHOOVER CO·Filed 1994·Granted Aug 22, 1995·46 cites·10 claims
- 0874US5870798ACompact carpet and upholstery extractorHOOVER CO·Filed 1996·Granted Feb 16, 1999·33 cites·25 claims
- 0972US5867857ACarpet extractor fluid supply systemHOOVER CO·Filed 1996·Granted Feb 9, 1999·46 cites·13 claims
- 1071US5943732ADoor valve for utility vacuum cleanersHOOVER CO·Filed 1997·Granted Aug 31, 1999·38 cites·14 claims
- 1170US5134750ACleaner with conversion valve arrangementHOOVER CO·Filed 1990·Granted Aug 4, 1992·37 cites·16 claims
- 1266US6138322AUpright carpet and upholstery extractorHOOVER CO·Filed 1997·Granted Oct 31, 2000·26 cites·17 claims
- 1364US6108860ACompact carpet and upholstery extractorHOOVER CO·Filed 1998·Granted Aug 29, 2000·24 cites·15 claims
- 1461USD398100SCarpet extractorHOOVER CO·Filed 1996·Granted Sep 8, 1998·11 cites·1 claims
- 1556US5860188ACarpet extractorHOOVER CO·Filed 1997·Granted Jan 19, 1999·23 cites·32 claims
- 1640US6189174B1Carpet extractor brush assemblyHOOVER CO·Filed 1999·Granted Feb 20, 2001·10 cites·7 claims
- 1740US4888851ABrush mounting arrangementHOOVER CO·Filed 1989·Granted Dec 26, 1989·10 cites·7 claims
Join the waitlist — get patent alerts
Get an alert when Darwin S. Crouser 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 →