Inventor
HEMBREE RICHARD D
US25 patents
⚠️ This page may combine multiple inventors who share the name “HEMBREE RICHARD D”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RECOVERY ENG INC
13 patentsUS5536394AJul 16, 1996
End of life mechanism for water treatment cartridge
RECOVERY ENG INC135 citations98
US5527451AJun 18, 1996
Water treatment device with volume totalization valve
RECOVERY ENG INC141 citations97
US5928504AJul 27, 1999
Faucet-mounted water treatment device
RECOVERY ENG INC102 citations96
US5525214AJun 11, 1996
Filter cartridge for water treatment device
RECOVERY ENG INC64 citations96
USD358868SMay 30, 1995
Faucet mounted water treatment device
RECOVERY ENG INC56 citations96
US5785844AJul 28, 1998
End of life mechanism for water treatment cartridge
RECOVERY ENG INC59 citations95
US5268093ADec 7, 1993
Portable water purification system
RECOVERY ENG INC70 citations95
US5106500AApr 21, 1992
Portable water purification system including a filter cleaning mechanism
RECOVERY ENG INC97 citations95
US6241103B1Jun 5, 2001
Filter cartridge for water treatment device
RECOVERY ENG INC24 citations92
USD377515SJan 21, 1997
Water filter cartridge
RECOVERY ENG INC45 citations92
US4793153ADec 27, 1988
Energy recovery apparatus
RECOVERY ENG INC35 citations92
US4902207AFeb 20, 1990
Energy recovery apparatus
RECOVERY ENG INC18 citations73
US4945725AAug 7, 1990
Differential-area piston type mixed-phase motors
RECOVERY ENG INC17 citations67
WANNER ENGINEERING
7 patentsUS7425120B2Sep 16, 2008
Diaphragm position control for hydraulically driven pumps
WANNER ENGINEERING22 citations92
US6941853B2Sep 13, 2005
Pump diaphragm rupture detection
WANNER ENGINEERING21 citations92
US6899530B2May 31, 2005
Diaphragm pump with a transfer chamber vent with a longitudinal notch on the piston cylinder
WANNER ENGINEERING20 citations90
US7101158B2Sep 5, 2006
Hydraulic balancing magnetically driven centrifugal pump
WANNER ENGINEERING31 citations86
US7665974B2Feb 23, 2010
Diaphragm pump position control with offset valve axis
WANNER ENGINEERING13 citations84
US7090474B2Aug 15, 2006
Diaphragm pump with overfill limiter
WANNER ENGINEERING16 citations82
US9964106B2May 8, 2018
Diaphragm pump with dual spring overfill limiter
WANNER ENGINEERING0 citations41
EXXONMOBIL CHEMICAL PATENTS INC
3 patentsUS10947375B2Mar 16, 2021
System and process for the production of functionalized olefinic-based polymer
EXXONMOBIL CHEMICAL PATENTS INC0 citations58
US10717063B2Jul 21, 2020
Reactor system for multi-phase polymerization process
EXXONMOBIL CHEMICAL PATENTS INC0 citations36
US10807064B2Oct 20, 2020
Reactor for multi-phase composition
EXXONMOBIL CHEMICAL PATENTS INC0 citations35