Inventor · disambiguated record
David Johnstone
Also filed as: JOHNSTONE DAVID · JOHNSTONE DAVID R
5 granted patents·37 citations·filing 1994–2014
74Inventor score
Top patents by PatentIndex Score
5 records- 0166US6089517AStuffed creature mounting deviceFiled 1997·Granted Jul 18, 2000·30 cites·8 claims
- 0251US9302721B1Track driven sub-base assemblyJOHNSTONE DAVID·Filed 2014·Granted Apr 5, 2016·1 cites·18 claims
- 0343US8905165B1Track driven sub-base assemblyJOHNSTONE DAVID·Filed 2013·Granted Dec 9, 2014·0 cites·18 claims
- 0438US8550193B1Track driven sub-base assemblyJOHNSTONE DAVID·Filed 2011·Granted Oct 8, 2013·0 cites·16 claims
- 0531US5489619AProcess for producing improved phenolic foams from phenolic resole resinsBP CHEM INT LTD·Filed 1994·Granted Feb 6, 1996·6 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →