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Inventor

PFEIFFER ROBERT W

US8 patents
⚠️ This page may combine multiple inventors who share the name “PFEIFFER ROBERT W”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

DEAN ROBERT R

3 patents
US4336160AJun 22, 1982

Method and apparatus for cracking residual oils

DEAN ROBERT R71 citations95
US4332674AJun 1, 1982

Method and apparatus for cracking residual oils

DEAN ROBERT R88 citations95
US4331533AMay 25, 1982

Method and apparatus for cracking residual oils

DEAN ROBERT R84 citations95

(unassigned)

2 patents
US5462717AOct 31, 1995

Processes using fluidized solids and apparatus for carrying out such processes

24 citations90
US5368276ANov 29, 1994

Valve with truncated aperture providing enhanced rangeability and logarithmic flow characteristic

33 citations90

PFEIFFER ROBERT W

2 patents
US4664139AMay 12, 1987

Valve especially for controlling particulate solids flow

PFEIFFER ROBERT W34 citations89
US5205537AApr 27, 1993

Valve with enhanced rangeability and logarithmic flow characteristic

PFEIFFER ROBERT W17 citations71

STONE & WEBSTER ENG CORP

1 patent
US4756886AJul 12, 1988

Rough cut solids separator

STONE & WEBSTER ENG CORP22 citations75