Inventor · disambiguated record
David James Birdsall
Also filed as: BIRDSALL DAVID JAMES
5 granted patents·39 citations·filing 2009–2018
78Inventor score
Top patents by PatentIndex Score
5 records- 0189US9981252B2Catalyst preparation methodJOHNSON MATTHEY PLC·Filed 2016·Granted May 29, 2018·3 cites·18 claims
- 0289US8557728B2Shaped heterogeneous catalystsBIRDSALL DAVID JAMES·Filed 2009·Granted Oct 15, 2013·27 cites·24 claims
- 0382US10076744B1Catalyst preparation methodJOHNSON MATTHEY PLC·Filed 2018·Granted Sep 18, 2018·1 cites·16 claims
- 0481US9480971B2Catalyst preparation methodCARLSSON MIKAEL PER UNO·Filed 2010·Granted Nov 1, 2016·5 cites·16 claims
- 0570US8563460B2Shaped heterogeneous catalystsBIRDSALL DAVID JAMES·Filed 2009·Granted Oct 22, 2013·3 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →