Inventor

Walter Brennan

Inventor
Sacramento, CA, US

Overview

4→
Patents
1976–2005
Patent span
Fixed constructions
Primary field (CPC E)

Patents· 4 as inventor

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

H04Lprimary
H04LTransmission of digital information, e.g. telegraphic communication33%
B01DSeparation17%
E03BInstallations or methods for obtaining, collecting, or distributing water17%
E21BEarth or rock drilling17%
F04DNon-positive-displacement pumps17%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976Patents assigned to GRIFFIN WELLPOINT CORP (1)· patent assignee history
1976–1981Based in Jacksonville, FL, US· patent location history
1981Patents assigned to GRIFFIN INTERNATIONAL INC (1)· patent assignee history
2004–2005Patents assigned to INTEL CORP (2)· patent assignee history
2004–2005Based in Sacramento, CA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
INTEL CORP22004–2005
GRIFFIN INTERNATIONAL INC11981
GRIFFIN WELLPOINT CORP11976
Locations
LocationPatentsSpan
Sacramento, California, US22004–2005
Jacksonville, Florida, US21976–1981