Inventor

Richard L. Weisman

Inventor

Pasadena, CA, US

Overview

1989–2020

Patent span

Physics

Primary field (CPC G)

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

H04Rprimary

H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers25%

G03BApparatus or arrangements for taking photographs or for projecting or viewing them17%

F01NGas-flow silencers or exhaust apparatus for machines or engines in general8%

F16LPipes8%

G09FDisplaying8%

G10KSound-producing devices8%

G11BInformation storage based on relative movement between record carrier and transducer8%

H01RElectrically-conductive connections8%

H02JElectric power networks8%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1989–2011Patents assigned to WEISMAN RICHARD L (2)· patent assignee history

1989Based in Boca Raton, FL, US· patent location history

1993–2020Based in Pasadena, CA, US· patent location history

1994–1995Patents assigned to SONY DYNAMIC DIGITAL SOUND INC (2)· patent assignee history

1994–1995Based in Hollywood, CA, US· patent location history

2011Patents assigned to ADVANCED BIONICS AG (1)· patent assignee history

2011Patents assigned to COLLINSON MICHAEL (1)· patent assignee history

2020Patents assigned to DOLBY LABORATORIES LICENSING CORP (1)· patent assignee history

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
SONY DYNAMIC DIGITAL SOUND INC	2	1994–1995
WEISMAN RICHARD Lself	2	1989–2011
ADVANCED BIONICS AG	1	2011
COLLINSON MICHAEL	1	2011
DOLBY LABORATORIES LICENSING CORP	1	2020

Locations