Inventor · disambiguated record
Ian D. Doig
Also filed as: DOIG IAN · DOIG IAN D · DOIG IAN DRACUP
8 granted patents·2 pending applications·278 citations·filing 1992–2013
87Inventor score
Top patents by PatentIndex Score
10 records- 0193US5643455AConcentration of solids in a suspension using hollow fibre membranesMEMTEL LIMITED·Filed 1992·Granted Jul 1, 1997·214 cites·3 claims
- 0286US9221000B2Filtration barrierDOIG IAN D·Filed 2013·Granted Dec 29, 2015·8 cites·17 claims
- 0385US8261777B2Duck beak valveDOIG IAN D·Filed 2010·Granted Sep 11, 2012·7 cites·9 claims
- 0480US8640883B2Filtration barrierDOIG IAN D·Filed 2009·Granted Feb 4, 2014·9 cites·11 claims
- 0580US6872058B2Travelling volume pump chamber surface arrangementFiled 2001·Granted Mar 29, 2005·22 cites·20 claims
- 0677US7832431B2Valves and pumpsDOIG IAN D·Filed 2006·Granted Nov 16, 2010·9 cites·18 claims
- 0774US8141587B2Duckbill type check valve with curved and resiliently biased closing sealDOIG IAN·Filed 2008·Granted Mar 27, 2012·9 cites·6 claims
- 0845US9782806B2Uni-directional pipeline pig and pipeline assembliesDOIG IAN·Filed 2012·Granted Oct 10, 2017·0 cites·18 claims
- 0935US2013011209A1Pipeline Conveyor SystemsDOIG IAN D·Filed 2011·Application pending·0 cites
- 1033US2003021707A1Diaphragm pumpFiled 2000·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →