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

David Harvey — 1 Patent in 2021

PFPurdue Research Foundation: 1 patents #76 of 428Top 20%
Overall (2021): #484,481 of 548,734Top 90%
1 Patents 2021

Issued Patents 2021

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11186894 Preparation of rare earth metals and other chemicals from industrial waste coal ash Nien-Hwa Linda Wang, Hoon Choi 2021-11-30