Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
DR

David Max Roundhill — 9 Patents

EDEmpire Technology Development: 5 patents #102 of 547Top 20%
ANApplied Nanotech: 4 patents #9 of 28Top 35%
ICIshihara Chemical Co.: 4 patents #4 of 58Top 7%
Seattle, WA: #3,345 of 21,776 inventorsTop 20%
Washington: #11,701 of 76,902 inventorsTop 20%
Overall (All Time): #535,341 of 4,157,543Top 15%
9 Patents All Time
David Max Roundhill has been granted 9 US patents while listed as an inventor at Empire Technology Development. The first was granted in 2013 and the most recent in March 2019. David Max Roundhill ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list David Max Roundhill in Seattle, WA, US.

Patents per Year

Patents granted per year, 2013 to 2019Bar chart with a peak of 2 patents in 2013.peak 22013: 2 patents20132015: 1 patents20152016: 2 patents20162017: 1 patents20172018: 2 patents20182019: 1 patents2019

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
10231344 Metallic ink Yunjun Li, Mohshi Yang, Igor Pavlovsky, Richard Lee Fink, Zvi Yaniv 2019-03-12
10040777 Polymers, co-polymers, and monomers using CO2 as a reagent 2018-08-07
9945793 Detection of volatile chemicals using an RFID sensing system 2018-04-17
9730333 Photo-curing process for metallic inks Yunjun Li, Mohshi Yang, Igor Pavlovsky, Richard Lee Fink, Zvi Yaniv 2017-08-08
9482639 Detection of volatile chemicals using an RFID sensing system 2016-11-01
9242298 Method and system for preparing shaped particles 2016-01-26
9061915 Graphene formation 2015-06-23
8506849 Additives and modifiers for solvent- and water-based metallic conductive inks Xueping Li, Yunjun Li, Peter B. Laxton, Hidetoshi Arimura 2013-08-13
8404160 Metallic ink Yunjun Li, Xueping Li, Peter B. Laxton, Hidetoshi Arimura, Zvi Yaniv 2013-03-26