Inventor · disambiguated record
Richard D. Williamson
Also filed as: WILLIAMSON RICHARD D · WILLIAMSON RICHARD DEAN
6 granted patents·219 citations·filing 1976–2005
85Inventor score
Top patents by PatentIndex Score
6 records- 0197US4391883AHousing arrangement with breakaway battery access doorMOTOROLA INC·Filed 1981·Granted Jul 5, 1983·152 cites·4 claims
- 0277US8025477B2Plenum/plug fan assemblyTWIN CITY FAN COMPANIES LTD·Filed 2005·Granted Sep 27, 2011·13 cites·25 claims
- 0355US4019141APreselector cavity arrangement and RF selectivity assemblyMOTOROLA INC·Filed 1976·Granted Apr 19, 1977·15 cites·8 claims
- 0452US5171128AFan wheel for a fan or blower assemblyTWIN CITY FAN & BLOWER CO·Filed 1991·Granted Dec 15, 1992·22 cites·2 claims
- 0539US4253796AFan or blower assemblyMARLEY WYLAIN CO·Filed 1978·Granted Mar 3, 1981·10 cites·13 claims
- 0633US4411453AFan or blower assemblyMARLEY WYLAIN CO·Filed 1980·Granted Oct 25, 1983·7 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →