Inventor · disambiguated record
David Campbell
Also filed as: CAMPBELL DAVID · CAMPBELL DAVID PAUL
3 granted patents·1 pending application·9 citations·filing 2002–2017
55Inventor score
Top patents by PatentIndex Score
4 records- 0155US7025092B2Positive air pressure attenuation device for drainage systemsSTUDOR SA·Filed 2002·Granted Apr 11, 2006·9 cites·20 claims
- 0248US2006201088A1Sealed off building drainage and vent systemSTUDOR SA·Filed 2005·Application pending·0 cites
- 0333US10969050B2Air pressure attenuation deviceUNIV HERIOT WATT·Filed 2017·Granted Apr 6, 2021·0 cites·21 claims
- 0424US8336368B2Method and equipment for detecting sealing deficiencies in drainage and vent systems for buildingsSWAFFIELD JOHN·Filed 2007·Granted Dec 25, 2012·0 cites·13 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →