Inventor · disambiguated record
Donald H. Parkes
Also filed as: PARKES DONALD H
7 granted patents·396 citations·filing 1984–1996
89Inventor score
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7 records- 0195US5131483ASingle lever controlSHIVVERS INC·Filed 1991·Granted Jul 21, 1992·108 cites·26 claims
- 0295US4750273AComputer controlled grain dryingSHIVVERS INC·Filed 1986·Granted Jun 14, 1988·70 cites·55 claims
- 0392US4599809AGrain dryer systemSHIVVERS INC·Filed 1984·Granted Jul 15, 1986·74 cites·30 claims
- 0483US5778648ALawn mower clipping collection systemSHIVVERS INC·Filed 1996·Granted Jul 14, 1998·49 cites·20 claims
- 0582US5279376AForce neutralizing mechanism for a single lever controlSHIVVERS INC·Filed 1992·Granted Jan 18, 1994·52 cites·32 claims
- 0670US5515669AAnti-buck device for out-front mower tractorsSHIVVERS GROUP INC·Filed 1995·Granted May 14, 1996·30 cites·16 claims
- 0742US5784867AVariable force traction enhance systemsSHIVVERS INC·Filed 1995·Granted Jul 28, 1998·13 cites·41 claims
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