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

David Losan Ho

FSFirst Solar: 1 patents #201 of 324Top 65%
HPHull Partners: 1 patents #3 of 11Top 30%
Hatboro, PA: #39 of 173 inventorsTop 25%
Pennsylvania: #19,182 of 74,527 inventorsTop 30%
Overall (All Time): #1,116,497 of 4,157,543Top 30%
4 Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
12112897 Methods for perovskite device processing by vapor transport deposition Le Chen, Xiaoping Li, Rick C. Powell, Tze-bin Song, Vera Steinmann +4 more 2024-10-08
8258291 Process for the preparation of sucralose by the chlorination of sugar with triphosgene (BTC) Wan Zhenghao 2012-09-04
7862744 Methods and systems for preparing materials for sucralose production Zhenghao Wan 2011-01-04
5330157 Rotary disk valve Charles D. Dern 1994-07-19