Inventor

Steven R. Hatch

Inventor

Naperville, IL, US

Overview

8→

Patents

2001–2020

Patent span

Chemistry

Primary field (CPC C)

Patents· 8 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C02Fprimary

C02FTreatment of water, waste water, sewage, or sludge21%

C12QMeasuring or testing processes involving enzymes, nucleic acids or microorganisms11%

C23FNon-mechanical removal of metallic material from surface11%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests11%

A01NPreservation of bodies of humans or animals or plants or parts thereof5%

B01DSeparation5%

C05CNitrogenous fertilisers5%

C05GMixtures of fertilisers covered individually by different subclasses of class c055%

F24FAir-conditioning5%

F28CHeat-exchange apparatus, not provided for in another subclass, in which the heat-exchange media come into direct contact without chemical interaction5%

PatentTitleYear

10,765,999Treatment of industrial water systems2020 8,741,157'Biofouling control'2014 7,968,007'Tungstate based corrosion inhibitors'2011 7,632,412'Method for chemistry control in cooling systems'2009 7,402,263'Tungstate based corrosion inhibitors'2008 6,818,417'Method for locating hidden microorganism contaminated surfaces in industrial water systems'2004 6,685,840'Method for determining the dissolution rate of a solid water treatment product'2004 6,329,165'Measurement and control of sessile and planktonic microbiological activity in industrial water systems'2001

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2001Patents assigned to NALCO CHEMICAL CO (1)· patent assignee history

2001–2020Based in Naperville, IL, US· patent location history

2004–2014Patents assigned to NALCO CO (5)· patent assignee history

2014Patents assigned to COOPER ANDREW J (1)· patent assignee history

2014Patents assigned to HATCH STEVEN R (1)· patent assignee history

2020Patents assigned to ECOLAB USA INC (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
NALCO CO	5	2004–2014
COOPER ANDREW J	1	2014
ECOLAB USA INC	1	2020
HATCH STEVEN Rself	1	2014
NALCO CHEMICAL CO	1	2001

Locations

Location	Patents	Span
Naperville, Illinois, US	8	2001–2020