LexDanaLexDanabeta
Inventor

Raymond T. Cunningham

Inventor
Houston, TX, US

Overview

4→
Patents
1993–1998
Patent span
Chemistry
Primary field (CPC C)

Patents· 4 as inventor

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

C07Dprimary
C07DHeterocyclic compounds22%
C23FNon-mechanical removal of metallic material from surface22%
C02FTreatment of water, waste water, sewage, or sludge11%
C05CNitrogenous fertilisers11%
C05GMixtures of fertilisers covered individually by different subclasses of class c0511%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds11%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests11%
PatentTitleYear
5,750,070'Use of biodegradable polymers in preventing corrosion and scale build-up'19985,376,159'Corrosion inhibitor for nitrogen fertilizer solutions'19945,314,910'Ester inhibitors'19945,240,956'Ester inhibitors'1993

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1993–1994Patents assigned to CORTECH INC (2)· patent assignee history
1993–1994Based in Houston, TX, US· patent location history
1994–1998Patents assigned to NALCO CHEMICAL CO (2)· patent assignee history
1994Based in Sugar Land, TX, US· patent location history
1998Based in Mechanicsville, VA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CORTECH INC21993–1994
NALCO CHEMICAL CO21994–1998
Locations
LocationPatentsSpan
Houston, Texas, US21993–1994
Mechanicsville, Virginia, US11998
Sugar Land, Texas, US11994