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

Charles Lieppe — 2 Patents

ZTZero E Technologies: 2 patents #10 of 16Top 65%
Delray Beach, FL: #258 of 629 inventorsTop 45%
Florida: #22,549 of 67,251 inventorsTop 35%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Charles Lieppe has been granted 2 US patents while listed as an inventor at Zero E Technologies. The first was granted in 2018 and the most recent in October 2019. Charles Lieppe ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Charles Lieppe in Delray Beach, FL, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10435313 Systems, devices, and methods of water filtration Doug Kellam, Rajan G. Rajan, Liu Wei, Ajit Dighe 2019-10-08
9994459 Gravity-fed and dual ion-exchange water filtration bottle Doug Kellam, Byron Stanger, Rajan G. Rajan, Ajit Dighe 2018-06-12