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

William Chu

WPWexxar Packaging: 2 patents #3 of 20Top 15%
University of California: 1 patents #8,022 of 18,278Top 45%
Lafayette, CA: #217 of 569 inventorsTop 40%
California: #149,087 of 386,348 inventorsTop 40%
Overall (All Time): #1,441,517 of 4,157,543Top 35%
3 Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
11173686 Apparatus and method for accurate carton formation David S. Porteous, Melvin Tsen, Oliver Pringle 2021-11-16
7555874 Case sealing apparatus with multiple operational modes 2009-07-07
5438454 Method for selecting minimum width of leaf in multileaf adjustable collimator while inhibiting passage of particle beams of radiation through sawtooth joints between collimator leaves Bernhard Ludewigt, John Bercovitz, Mark Nyman 1995-08-01