LH

Leif J. Hauge

ER Energy Recovery: 1 patents #32 of 50Top 65%
UN Unknown: 1 patents #29,356 of 83,584Top 40%
🗺 California: #55,401 of 386,348 inventorsTop 15%
Overall (All Time): #433,753 of 4,157,543Top 15%
11
Patents All Time

Issued Patents All Time

Showing 1–11 of 11 patents

Patent #TitleCo-InventorsDate
12247588 Pressure exchanger for gas processing 2025-03-11
12085094 Pressure exchanger with flow divider in rotor duct 2024-09-10
11572899 Pressure exchanger for hydraulic fracking 2023-02-07
10125796 Rotor positioning system in a pressure exchange vessel 2018-11-13
10024496 Split pressure vessel for two flow processing 2018-07-17
7306437 Pressure exchanger 2007-12-11
6659731 Pressure exchanger 2003-12-09
6540487 Pressure exchanger with an anti-cavitation pressure relief system in the end covers Thanos Polizos, Thomas Babcock, Ragnar A. Hermanstad 2003-04-01
5988993 Pressure exchanger having a rotor with automatic axial alignment 1999-11-23
5338158 Pressure exchanger having axially inclined rotor ducts 1994-08-16
4887942 Pressure exchanger for liquids 1989-12-19