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

David Leo — 9 Patents

ACAcera: 7 patents #5 of 8Top 65%
GE: 2 patents #13,632 of 36,430Top 40%
Winchester, MA: #181 of 828 inventorsTop 25%
Massachusetts: #14,291 of 88,656 inventorsTop 20%
Overall (All Time): #535,341 of 4,157,543Top 15%
9 Patents All Time
David Leo has been granted 9 US patents while listed as an inventor at Acera. The first was granted in 2005 and the most recent in May 2024. David Leo ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list David Leo in Winchester, MA, US.

Patents per Year

Patents granted per year, 2005 to 2024Bar chart with a peak of 2 patents in 2020.peak 22005: 1 patents20052012: 1 patents20122019: 1 patents20192020: 2 patents20202021: 1 patents20212022: 2 patents20222024: 1 patents2024

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11988825 Embeddable module for high output led Thomas V. Root, Thomas Davis, Michael Cook, Carlton S. Jones, Michael S. Epstein 2024-05-21
11525999 Handheld mobile light source Thomas V. Root, Michael Cook, Thomas Davis, Michael S. Epstein, Carlton S. Jones 2022-12-13
11409096 Embeddable module for high output LED Thomas V. Root, Thomas Davis, Michael Cook, Carlton S. Jones, Michael S. Epstein 2022-08-09
11016282 Handheld mobile light source Thomas V. Root, Michael Cook, Thomas Davis, Michael S. Epstein, Carlton S. Jones 2021-05-25
10782518 Embeddable module for high output LED Thomas V. Root, Thomas Davis, Michael Cook, Carlton S. Jones, Michael S. Epstein 2020-09-22
10768407 Embeddable module for high output LED Thomas V. Root, Thomas Davis, Michael Cook, Carlton S. Jones, Michael S. Epstein 2020-09-08
10281709 Handheld mobile light source Thomas V. Root, Michael Cook, Thomas Davis, Michael S. Epstein, Carlton S. Jones 2019-05-07
8246306 Airfoil for nozzle and a method of forming the machined contoured passage therein Margaret Jones Schotsch, Randall Gill, Peter Galen Stevens, John Seymour 2012-08-21 $18,821,000
6843637 Cooling circuit within a turbine nozzle and method of cooling a turbine nozzle Michael Pothier, John Seymour 2005-01-18 $35,809,000