Assignee
PUTNAM DAVID
8 patents
Top patents by PatentIndex Score
US4537044AAug 27, 1985
Food storage container
PUTNAM DAVID175 citations98
US9605403B1Mar 28, 2017
Vented precipitation guarding manhole cover assemblies
PUTNAM DAVID21 citations93
US8851791B1Oct 7, 2014
Manhole cover venting and precipitation guarding devices
PUTNAM DAVID20 citations92
US8916143B2Dec 23, 2014
Polymer compositions of dihydroxyacetone and uses thereof
PUTNAM DAVID8 citations79
US11118323B1Sep 14, 2021
Traffic-compatible vented precipitation guarding manhole cover assemblies
PUTNAM DAVID6 citations72
US9873083B1Jan 23, 2018
Wastewater pump station venting system and method
PUTNAM DAVID2 citations72
US12405185B2Sep 2, 2025
Leak-and-sealing-failure-detection sensor and system
PUTNAM DAVID0 citations62
US10495555B2Dec 3, 2019
Filter-cartridge based fluid-sample preparation and assay system
PUTNAM DAVID0 citations27