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Inventor

Thomas A. Grancey

Inventor
Grass Valley, CA, US

Overview

3→
Patents
1989
Patent span
Electricity
Primary field (CPC H)

Patents· 3 as inventor

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

H04Nprimary
H04NPictorial communication, e.g. television50%
H03GControl of amplification25%
H04HBroadcast communication25%
PatentTitleYear
4,885,792'Audio mixer architecture using virtual gain control and switching'19894,858,011'Video switcher system with modular architecture'19894,853,784'Video switcher with independent processing of selected video signals'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989Patents assigned to GRASS VALLEY GROUP (2)· patent assignee history
1989Patents assigned to ABT JOHN (1)· patent assignee history
1989Patents assigned to BANNISTER RICHARD S (1)· patent assignee history
1989Patents assigned to BARNETT RONNIE D (1)· patent assignee history
1989Patents assigned to BLECKSMITH JAMES E (1)· patent assignee history
1989Based in Grass Valley, CA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
GRASS VALLEY GROUP21989
ABT JOHN11989
BANNISTER RICHARD S11989
BARNETT RONNIE D11989
BLECKSMITH JAMES E11989
Locations
LocationPatentsSpan
Grass Valley, California, US31989