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Inventor

Harold A. Chagnard, Jr.

Inventor
Baton Rouge, LA, US

Overview

2→
Patents
1988–1989
Patent span
Chemistry
Primary field (CPC C)

Patents· 2 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 sludge33%
C23FNon-mechanical removal of metallic material from surface33%
F02BInternal-combustion piston engines33%
PatentTitleYear
4,869,827'Treatment for water systems to inhibit corrosion and scale formation'19894,774,018'Treatment for water systems to inhibit corrosion and scale formation'1988

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1988–1989Patents assigned to DOW CHEMICAL CO (2)· patent assignee history
1988–1989Based in Baton Rouge, LA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
DOW CHEMICAL CO21988–1989
Locations
LocationPatentsSpan
Baton Rouge, LA, US21988–1989