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

Walter Manger — 2 Patents

Merck: 2 patents #3,919 of 9,382Top 45%
Harleysville, PA: #166 of 322 inventorsTop 55%
Pennsylvania: #30,495 of 74,527 inventorsTop 45%
Overall (All Time): #2,217,247 of 4,157,543Top 55%
2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6436402 Process for making human papillomavirus virus-like particles with improved properties Qinjian Zhao, Shilu Wu, Shishir Gadam 2002-08-20
5314811 Process for converting lipid-containing bacterial capsular polysaccharide into lipid-free polysaccharide Ann Lee, Mark S. Rienstra, Robert D. Sitrin 1994-05-24