Inventor · disambiguated record
Roger Charles Chapman
Also filed as: CHAPMAN ROGER · CHAPMAN ROGER ALAN · CHAPMAN ROGER C · CHAPMAN ROGER CHARLES
9 granted patents·1 pending application·27 citations·filing 1981–2022
82Inventor score
Top patents by PatentIndex Score
10 records- 0176US10267294B2Spring return deviceKINETROL LTD·Filed 2016·Granted Apr 23, 2019·3 cites·28 claims
- 0261US6708720B2Valve accessoryKINETROL LTD·Filed 2002·Granted Mar 23, 2004·10 cites·15 claims
- 0358US6725975B2Positioning rotary actuatorsKINETROL LTD·Filed 2001·Granted Apr 27, 2004·9 cites·6 claims
- 0453US9085978B2Rotary vane actuatorsCHAPMAN ROGER CHARLES·Filed 2010·Granted Jul 21, 2015·2 cites·13 claims
- 0552US11585327B2Spring return deviceKINETROL LTD·Filed 2021·Granted Feb 21, 2023·0 cites·20 claims
- 0649US11965489B2Coupling deviceKINETROL LTD·Filed 2022·Granted Apr 23, 2024·0 cites·14 claims
- 0745US10100641B2Rotary vane actuator and vane assemblyKINETROL LTD·Filed 2016·Granted Oct 16, 2018·0 cites·22 claims
- 0834US2002108269A1Shoe toe or heel end stiffenerFiled 2001·Application pending·0 cites
- 0923US6116909AApparatus for teaching infants how to tie shoe lacesFiled 1999·Granted Sep 12, 2000·3 cites·7 claims
- 1022USD273832STray accessory attachmentCHAPMAN ROGER·Filed 1981·Granted May 15, 1984·0 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →