Inventor · disambiguated record
William R. Sumerau
Also filed as: SUMERAU WILLIAM R
10 granted patents·401 citations·filing 1982–1988
92Inventor score
Top patents by PatentIndex Score
10 records- 0186US4670937AFilter retention system for vacuum cleanersSINGER CO·Filed 1986·Granted Jun 9, 1987·72 cites·12 claims
- 0285US4811452AAuxiliary attachment adaptor and vacuum cleaner for use therewithRYOBI MOTOR PRODUCTS CORP·Filed 1988·Granted Mar 14, 1989·58 cites·21 claims
- 0383US4662026AConvertible vacuum cleaner handleSINGER CO·Filed 1986·Granted May 5, 1987·52 cites·6 claims
- 0480US4512057AFloor care applianceSINGER CO·Filed 1984·Granted Apr 23, 1985·48 cites·3 claims
- 0578US4757574ALight plate for vacuum cleanerSINGER CO·Filed 1988·Granted Jul 19, 1988·45 cites·15 claims
- 0676US4447930APower head unit for carpet cleaningSINGER CO·Filed 1982·Granted May 15, 1984·42 cites·24 claims
- 0774US4864683ANoise isolating motor mounting system for a canister vacuum cleanerRYOBI MOTOR PRODUCTS CORP·Filed 1988·Granted Sep 12, 1989·40 cites·4 claims
- 0858US4763382AVacuum cleaner hanging arrangementSINGER CO·Filed 1988·Granted Aug 16, 1988·23 cites·10 claims
- 0943US4516289AHandle construction for floor care applianceSINGER CO·Filed 1984·Granted May 14, 1985·12 cites·4 claims
- 1043US4514200AFilter bag for floor care applianceSINGER CO·Filed 1984·Granted Apr 30, 1985·9 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →