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Inventor

Douglas C. Brown

Inventor
Aliso Viejo, CA, US

Overview

2→
Patents
1990–2004
Patent span
Physics
Primary field (CPC G)

Patents· 2 as inventor

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

G11Bprimary
G11BInformation storage based on relative movement between record carrier and transducer50%
H04NPictorial communication, e.g. television50%
PatentTitleYear
6,775,462'Tone-controlled video muting'2004D0310821'Battery container'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990Patents assigned to GLOBE UNION INC (1)· patent assignee history
1990Based in Glendale, WI, US· patent location history
2004Patents assigned to SONY CORP (1)· patent assignee history
2004Patents assigned to SONY TRANS COM INC (1)· patent assignee history
2004Based in Aliso Viejo, CA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
GLOBE UNION INC11990
SONY CORP12004
SONY TRANS COM INC12004
Locations
LocationPatentsSpan
Aliso Viejo, California, US12004
Glendale, WI, US11990