Inventor · disambiguated record
David Francis
Also filed as: FRANCIS DAVID · FRANCIS DAVID C
2 granted patents·1 pending application·59 citations·filing 1995–2019
57Inventor score
Top patents by PatentIndex Score
3 records- 0175US5948142APressure and temperature swing adsorption and temperature swing adsorptionSECR DEFENCE BRIT·Filed 1995·Granted Sep 7, 1999·59 cites·23 claims
- 0239US8651949B2Toy and associated computer gameDIXON MARK·Filed 2011·Granted Feb 18, 2014·0 cites·22 claims
- 0337US2019347746A1Building construction tracking device and methodsINNOVATIVE CONSTRUCTION TECH ENTERPRISES INC·Filed 2019·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →