P

Inventor

HOPKINS DAVID H

US9 patents
⚠️ This page may combine multiple inventors who share the name “HOPKINS DAVID H”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

DESALINATION SYSTEMS

3 patents
US4842736AJun 27, 1989

Spiral wound membrane

DESALINATION SYSTEMS125 citations95
US5266195ANov 30, 1993

Spiral wound separation device and method of making same

DESALINATION SYSTEMS62 citations94
US4906372AMar 6, 1990

Spiral-wound membrane cartridge

DESALINATION SYSTEMS108 citations94

PTI ADVANCED FILTRATION INC

2 patents
US6436213B1Aug 20, 2002

Enhanced electro-deposition device and method

PTI ADVANCED FILTRATION INC6 citations71
US6634192B2Oct 21, 2003

System and method for flushing a membrane web using a vacuum roller

PTI ADVANCED FILTRATION INC2 citations58

GTE PROD CORP

2 patents
US4503904AMar 12, 1985

Heat recuperator with triple pass cross-flow ceramic core

GTE PROD CORP3 citations61
US4503905AMar 12, 1985

Method of making ceramic core heat recuperator

GTE PROD CORP6 citations61

EXXON RESEARCH ENGINEERING CO

1 patent
US5238563AAug 24, 1993

Multi-element housing

EXXON RESEARCH ENGINEERING CO50 citations89

NIMBUS WATER SYSTEMS INC

1 patent
USD295887SMay 24, 1988

Water purification unit

NIMBUS WATER SYSTEMS INC17 citations81