LexDanaLexDanabeta
Inventor

Robert B. Williamson

Inventor
Berkeley, CA, US

Overview

3→
Patents
1976–1999
Patent span
Fixed constructions
Primary field (CPC E)

Patents· 3 as inventor

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

B28Bprimary
B28BShaping clay or other ceramic compositions17%
E04CStructural elements17%
E04DRoof coverings17%
H01QAntennas, i.e. radio aerials17%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests17%
Y10TTechnical subjects covered by former us classification17%
PatentTitleYear
5,950,383'Metal roof sealing system and method'19994,907,004'Power versatile satellite transmitter'19903,984,266'Process for bonding a ferro-cement structure with fiberglass reinforced plastic'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976Patents assigned to US NAVY (1)· patent assignee history
1976–1999Based in Berkeley, CA, US· patent location history
1990Patents assigned to SPAR AEROSPACE LTD (1)· patent assignee history
1990Based in Pointe-Claire, CA· patent location history
1999Patents assigned to BRIDGESTONE CORP (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
BRIDGESTONE CORP11999
SPAR AEROSPACE LTD11990
US NAVY11976
Locations
LocationPatentsSpan
Berkeley, California, US21976–1999
Pointe-Claire, CA11990