Inventor · disambiguated record
Duane M. Beukema
Also filed as: BEUKEMA DUANE M
6 granted patents·420 citations·filing 1979–1986
88Inventor score
Technology areasA47C
Files withSTEELCASE INC6
Top patents by PatentIndex Score
6 records- 0198US4776633AIntegrated chair and controlSTEELCASE INC·Filed 1986·Granted Oct 11, 1988·166 cites·29 claims
- 0294US4390206ASynchrotilt chair controlSTEELCASE INC·Filed 1980·Granted Jun 28, 1983·98 cites·66 claims
- 0385US4438898AChain control locking assemblySTEELCASE INC·Filed 1980·Granted Mar 27, 1984·53 cites·30 claims
- 0482US4373692AChair control with height adjustment actuatorSTEELCASE INC·Filed 1980·Granted Feb 15, 1983·60 cites·26 claims
- 0561US4485996AHeight adjustor for furnitureSTEELCASE INC·Filed 1982·Granted Dec 4, 1984·27 cites·16 claims
- 0653US4324382AHeight adjustable chair baseSTEELCASE INC·Filed 1979·Granted Apr 13, 1982·16 cites·29 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →