Assignee
PUTNAM DAVID
US·8 granted patents·1 pending application·232 citations·filing 1985–2023
Top patents by PatentIndex Score
9 records- 0198US4537044AFood storage containerPUTNAM DAVID·Filed 1985·Granted Aug 27, 1985·175 cites·5 claims
- 0297US9605403B1Vented precipitation guarding manhole cover assembliesPUTNAM DAVID·Filed 2015·Granted Mar 28, 2017·21 cites·16 claims
- 0395US8851791B1Manhole cover venting and precipitation guarding devicesPUTNAM DAVID·Filed 2013·Granted Oct 7, 2014·20 cites·16 claims
- 0489US11118323B1Traffic-compatible vented precipitation guarding manhole cover assembliesPUTNAM DAVID·Filed 2017·Granted Sep 14, 2021·6 cites·14 claims
- 0583US8916143B2Polymer compositions of dihydroxyacetone and uses thereofPUTNAM DAVID·Filed 2009·Granted Dec 23, 2014·8 cites·29 claims
- 0672US9873083B1Wastewater pump station venting system and methodPUTNAM DAVID·Filed 2014·Granted Jan 23, 2018·2 cites·21 claims
- 0767US12405185B2Leak-and-sealing-failure-detection sensor and systemPUTNAM DAVID·Filed 2023·Granted Sep 2, 2025·0 cites·20 claims
- 0842US10495555B2Filter-cartridge based fluid-sample preparation and assay systemPUTNAM DAVID·Filed 2014·Granted Dec 3, 2019·0 cites·9 claims
- 0942US2013123144A1Tunable lcst polymers and methods of preparationPUTNAM DAVID·Filed 2011·Application pending·0 cites
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →