Inventor
DAWSON RICHARD F
US9 patents
⚠️ This page may combine multiple inventors who share the name “DAWSON RICHARD F”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
WALKER DAWSON INTERESTS INC
8 patentsUS6450775B1Sep 17, 2002
Jet pumps and methods employing the same
WALKER DAWSON INTERESTS INC54 citations94
US7045068B2May 16, 2006
Apparatus and methods for separating slurried material
WALKER DAWSON INTERESTS INC36 citations91
US6911145B2Jun 28, 2005
Apparatus and methods for separating slurried material
WALKER DAWSON INTERESTS INC28 citations91
US6322327B1Nov 27, 2001
Jet pump for transfer of material
WALKER DAWSON INTERESTS INC35 citations91
US6860042B2Mar 1, 2005
Excavation system employing a jet pump
WALKER DAWSON INTERESTS INC19 citations82
US11643287B2May 9, 2023
Systems and methods for conveying a non-dry frac proppant
WALKER DAWSON INTERESTS INC8 citations80
US7243478B2Jul 17, 2007
Vacuum system manifold and related methods
WALKER DAWSON INTERESTS INC11 citations76
US9375761B1Jun 28, 2016
Methods for modifying non-standard frac sand to sand with fracking properties
WALKER DAWSON INTERESTS INC2 citations52