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

John Patrick DeChristopher — 2 Patents

STSpruce Environmental Technologies: 2 patents #2 of 4Top 50%
Ward Hill, MA: #1 of 2 inventorsTop 50%
Massachusetts: #42,563 of 88,656 inventorsTop 50%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
John Patrick DeChristopher has been granted 2 US patents while listed as an inventor at Spruce Environmental Technologies. The first was granted in 2023 and the most recent in September 2024. John Patrick DeChristopher ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list John Patrick DeChristopher in Ward Hill, MA, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
12078764 Wearable radon detector Mark David Fearis 2024-09-03
11774604 Wearable radon detector Mark David Fearis 2023-10-03