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Inventor

R. L. Parnell

Inventor
Cincinnati, OH, US

Overview

2→
Patents
1985–1987
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.

A47Fprimary
A47FSpecial furniture, fittings, or accessories for shops, storehouses, bars, restaurants or the like25%
C21CProcessing of pig-iron, e.g. refining, manufacture of wrought-iron or steel25%
C22BProduction and refining of metals25%
Y02PClimate change mitigation technologies in the production or processing of goods25%
PatentTitleYear
4,694,965'Modular panels for a display apparatus'19874,528,035'Composition and process to create foaming slag cover for molten steel'1985

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1985Patents assigned to METRO MATERIALS CORP (1)· patent assignee history
1985Based in Sand Springs, OK, US· patent location history
1987Patents assigned to TOMORROW GROUP INC (1)· patent assignee history
1987Based in Cincinnati, OH, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
METRO MATERIALS CORP11985
TOMORROW GROUP INC11987
Locations
LocationPatentsSpan
Cincinnati, OH, US11987
Sand Springs, OK, US11985