Inventor · disambiguated record
Donald L. Greenwood
Also filed as: GREENWOOD DONALD · GREENWOOD DONALD L · GREENWOOD JR DONALD L · GREENWOOD JR DONALD LEE
5 granted patents·177 citations·filing 1978–1996
82Inventor score
Technology areasA63H
Top patents by PatentIndex Score
5 records- 0189US5769681AOpen-ended toy construction systemFiled 1996·Granted Jun 23, 1998·122 cites·44 claims
- 0274US4921458AUpright rolling toy assemblyGREENWOOD DONALD L·Filed 1989·Granted May 1, 1990·35 cites·19 claims
- 0357USD254020SToy locomotive or the likeDART IND INC·Filed 1978·Granted Jan 22, 1980·6 cites·1 claims
- 0448USD315353SShoulder rest for telephone handset or the likeGREENWOOD SR DONALD L·Filed 1989·Granted Mar 12, 1991·7 cites·1 claims
- 0540US4608027ASoft propellable toyKLAMER R B·Filed 1983·Granted Aug 26, 1986·7 cites·13 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →