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Inventor

Roger D. Brown

Inventor
Sylacauga, AL, US

Overview

4→
Patents
1992–2016
Patent span
Human necessities
Primary field (CPC A)

Patents· 4 as inventor

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

A47Cprimary
A47CChairs50%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds25%
E21BEarth or rock drilling25%
PatentTitleYear
9,428,994'Blowout preventer monitor with trigger sensor and method of using same'20165,303,981'Standing aid for use with a checkout counter'19945,199,763'Standing aid for use with a checkout counter'19935,175,231'Urethane oligomers and polyurethanes'1992

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992Patents assigned to FIBER COTE CORP (1)· patent assignee history
1992Based in Louisville, KY, US· patent location history
1993–1994Patents assigned to MADIX INC (2)· patent assignee history
1993–1994Based in Sylacauga, AL, US· patent location history
2016Patents assigned to NAT OILWELL VARCO LP (1)· patent assignee history
2016Based in Katy, TX, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MADIX INC21993–1994
FIBER COTE CORP11992
NAT OILWELL VARCO LP12016
Locations
LocationPatentsSpan
Sylacauga, AL, US21993–1994
Katy, Texas, US12016
Louisville, KY, US11992