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

John E. Joyce — 3 Patents

GMGreen Materials: 1 patents #7 of 8Top 90%
South Weymouth, MA: #11 of 26 inventorsTop 45%
Massachusetts: #33,867 of 88,656 inventorsTop 40%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
John E. Joyce has been granted 3 US patents while listed as an inventor at Green Materials. The first was granted in 1980 and the most recent in September 2013. John E. Joyce ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list John E. Joyce in South Weymouth, MA, US.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
8535591 Process for preparing biodegradable articles Dara L. Woerdeman, Peter J. Joyce 2013-09-17
4202370 Apparatus for use in generating liquid concentration gradients hydrostatically 1980-05-13
4188967 Method of generating liquid concentration gradients hydrostatically 1980-02-19