Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
JG

Jeff Z. Guan — 3 Patents

Broadcom: 3 patents #3,175 of 9,346Top 35%
San Ramon, CA: #982 of 2,140 inventorsTop 50%
California: #149,087 of 386,348 inventorsTop 40%
Overall (All Time): #1,551,163 of 4,157,543Top 40%
3 Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
8149904 Asymmetric digital subscriber line modem apparatus and methods therefor Gregory H. Efland, Haixiang Liang, Kevin H. Peterson, Yuanjie Chen, Alan Corry +8 more 2012-04-03
7809902 Method and system for copying DMA with separate strides by a modulo-n counter Gregory H. Efland, Lin Yin 2010-10-05
7177988 Method and system for synchronizing processor and DMA using ownership flags Gregory H. Efland, Gong-san Yu 2007-02-13