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

Robert D. Klassen

HTH-D Tech: 1 patents #7 of 10Top 70%
Overall (All Time): #2,289,889 of 4,157,543Top 60%
2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5458863 Cold process for hydroxyapatite coatings 1995-10-17
4969981 Cell and method of operating a liquid-gas electrochemical cell Derek J. Rogers, Allan James, Indresh Mathur, Edward B. Noonan 1990-11-13