Inventor
SAND WILLIAM F
US16 patents
⚠️ This page may combine multiple inventors who share the name “SAND WILLIAM F”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HYDRO SYSTEMS CO
8 patentsUS6499872B2Dec 31, 2002
Ultra-lean dilution apparatus
HYDRO SYSTEMS CO62 citations96
US6238081B1May 29, 2001
Ultra-lean dilution apparatus
HYDRO SYSTEMS CO74 citations96
US5522419AJun 4, 1996
Chemical eductor with integral elongated air gap
HYDRO SYSTEMS CO80 citations96
US5253677AOct 19, 1993
Chemical eductor with integral elongated air gap
HYDRO SYSTEMS CO73 citations96
US5159958ANov 3, 1992
Chemical eductor with integral elongated air gap
HYDRO SYSTEMS CO71 citations96
US6619318B2Sep 16, 2003
Multiple flow rate eductive dispenser
HYDRO SYSTEMS CO54 citations95
US6655401B2Dec 2, 2003
Multiple chemical product eductive dispenser
HYDRO SYSTEMS CO42 citations92
US5377718AJan 3, 1995
Selecting and dispensing valve
HYDRO SYSTEMS CO39 citations92
SAND WILLIAM F
5 patentsUSD577385SSep 23, 2008
Heart shaped card holder
SAND WILLIAM F31 citations91
US8499979B2Aug 6, 2013
Chemical dispensing apparatus and methods
SAND WILLIAM F7 citations83
USD577074SSep 16, 2008
Heart shaped card holder with tray
SAND WILLIAM F8 citations72
US8726945B2May 20, 2014
Chemical dispensing reservoir apparatus and methods
SAND WILLIAM F2 citations59
US9096417B2Aug 4, 2015
Modular chemical dispensing system and methods
SAND WILLIAM F0 citations40