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Inventor

FERGUSON RICHARD H

US17 patents
⚠️ This page may combine multiple inventors who share the name “FERGUSON RICHARD H”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

PPG IND OHIO INC

6 patents
US6517727B2Feb 11, 2003

Method of operating a chemical feeder

PPG IND OHIO INC49 citations92
US6298871B1Oct 9, 2001

Chemical feeder

PPG IND OHIO INC55 citations92
US6544487B1Apr 8, 2003

Chemical feeder

PPG IND OHIO INC29 citations90
US5960808AOct 5, 1999

Method of controlling the amount of sanitizing agent in an aqueous medium

PPG IND OHIO INC21 citations90
US7081232B1Jul 25, 2006

Chemical feeder

PPG IND OHIO INC31 citations86
US6998057B2Feb 14, 2006

Method for monitoring and controlling chlorine levels in an aqueous medium

PPG IND OHIO INC16 citations77

AXIALL OHIO INC

4 patents
US10160677B2Dec 25, 2018

Chemical feeder

AXIALL OHIO INC3 citations65
US9260328B2Feb 16, 2016

Chemical feeder

AXIALL OHIO INC0 citations51
US9272249B2Mar 1, 2016

Chemical feeder

AXIALL OHIO INC0 citations41
US9540265B2Jan 10, 2017

Chemical feeder

AXIALL OHIO INC0 citations29

PPG INDUSTRIES INC

3 patents
US5384102AJan 24, 1995

Chemical feeder

PPG INDUSTRIES INC152 citations98
US5662795ASep 2, 1997

Swimming pool chemical dispenser

PPG INDUSTRIES INC42 citations90
US5205961AApr 27, 1993

Granular calcium hypochlorite treatment process

PPG INDUSTRIES INC23 citations86

FERGUSON RICHARD H

2 patents
USD685081SJun 25, 2013

Calcium hypochlorite tablet

FERGUSON RICHARD H13 citations73
USD685080SJun 25, 2013

Calcium hypochlorite tablet

FERGUSON RICHARD H7 citations72

PPG IND OHIO

1 patent
US6138703AOct 31, 2000

Chemical feeder

PPG IND OHIO51 citations86

EAGLE US 2 LLC

1 patent
US10400198B2Sep 3, 2019

Method of sanitizing a surface

EAGLE US 2 LLC2 citations59