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

Li Yang — 4 Patents

PTPlanet Polymer Technologies: 2 patents #3 of 4Top 75%
San Diego, CA: #8,442 of 23,606 inventorsTop 40%
California: #126,026 of 386,348 inventorsTop 35%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Li Yang has been granted 4 US patents while listed as an inventor at Planet Polymer Technologies. The first was granted in 2000 and the most recent in July 2012. Li Yang ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Li Yang in San Diego, CA, US.

Patents per Year

Patents granted per year, 2000 to 2012Bar chart with a peak of 1 patents in 2000.peak 12000: 1 patents20002001: 1 patents20012005: 1 patents20052012: 1 patents2012

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
8222039 Process for purification of water soluble polymers James F. Monthony, Kurt E. Kershaw, Christopher D. Winslow, John G. Riley 2012-07-17
6915554 Process of molding and assembling three-dimensional ornaments 2005-07-12
6203833 Process for preserving fresh produce Xiaoming Yang, Robert J. Petcavich, Lijun Mao 2001-03-20 $223,000
6165529 Process for preventing fresh produce and coating composition therefor Xiaoming Yang, Robert J. Petcavich, Lijun Mao 2000-12-26 $196,000