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

Anna Tong — 2 Patents

POPolysign: 2 patents #6 of 10Top 60%
San Francisco, CA: #14,470 of 26,999 inventorsTop 55%
California: #187,151 of 386,348 inventorsTop 50%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Anna Tong has been granted 2 US patents while listed as an inventor at Polysign. The first was granted in 2022 and the most recent in March 2024. Anna Tong ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Anna Tong in San Francisco, CA, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11940987 Preventing a transmission of an incorrect copy of a record of data to a distributed ledger system David A. Schwartz, Arthur Britto, Kimon Papahadjopoulos, William Morris, Chiranjeeb Kataki +2 more 2024-03-26
11449491 Preventing a transmission of an incorrect copy of a record of data to a distributed ledger system David A. Schwartz, Arthur Britto, Kimon Papahadjopoulos, William Morris, Chiranjeeb Kataki +2 more 2022-09-20