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

John Rayfield — 3 Patents

LELeia: 1 patents #16 of 23Top 70%
Dover, DE: #73 of 234 inventorsTop 35%
Delaware: #2,598 of 7,163 inventorsTop 40%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
John Rayfield has been granted 3 US patents while listed as an inventor at Leia. The first was granted in 1981 and the most recent in July 2022. John Rayfield ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list John Rayfield in Dover, DE, US.

Patents per Year

Patents granted per year, 1981 to 2022Bar chart with a peak of 1 patents in 1981.peak 11981: 1 patents19812021: 1 patents20212022: 1 patents2022

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
11389334 Apparatus for applying a compression bandage Tanya Rayfield 2022-07-19
10948772 Multiview backlight, multiview display and method employing offset multibeam elements David A. Fattal 2021-03-16
4242769 Anti-exposure inflatable structure John D. Schieble 1981-01-06