Inventor · disambiguated record
Christopher John Biddulph
Also filed as: BIDDULPH CHRISTOPHER JOHN
5 granted patents·2 pending applications·9 citations·filing 2008–2020
69Inventor score
Top patents by PatentIndex Score
7 records- 0171US11459890B2Rotary engine rotor with lip and a recess on the flankUAV ENGINES LTD·Filed 2020·Granted Oct 4, 2022·1 cites·6 claims
- 0260US10513965B2Cooling of internal combustion enginesUAV ENGINES LTD·Filed 2017·Granted Dec 24, 2019·0 cites·11 claims
- 0348US10253677B2Cooling of internal combustion enginesUAV ENGINES LTD·Filed 2014·Granted Apr 9, 2019·0 cites·8 claims
- 0444US2017167368A1Rotary Engine RotorUAV ENGINES LTD·Filed 2016·Application pending·0 cites
- 0542USD614103SEngine mufflerUAV ENGINES LTD·Filed 2008·Granted Apr 20, 2010·8 cites·1 claims
- 0636US2010242926A1Fuel heating apparatusBIDDULPH CHRISTOPHER JOHN·Filed 2008·Application pending·0 cites
- 0734US9518658B2Rotary engine rotorBIDDULPH CHRISTOPHER JOHN·Filed 2012·Granted Dec 13, 2016·0 cites·11 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →