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Inventor

William J. Keezer

Inventor
Sherborn, MA, US

Overview

5→
Patents
1979–1996
Patent span
Electricity
Primary field (CPC H)

Patents· 5 as inventor

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 transducers50%
H04NPictorial communication, e.g. television20%
H04SStereophonic systems20%
Y10TTechnical subjects covered by former us classification10%
PatentTitleYear
5,574,796'Loudspeaker installing'19965,027,403'Video sound'19914,984,273'Enhancing bass'19914,577,069'Electroacoustical transducer'19864,158,756'Dynamic loudspeaker with plastic basket encapsulating front pole plate'1979

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1979–1996Patents assigned to BOSE CORP (5)· patent assignee history
1979–1986Based in Medway, MA, US· patent location history
1991–1996Based in Sherborn, MA, US· patent location history
1991Based in Framingham, MA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
BOSE CORP51979–1996
Locations
LocationPatentsSpan
Sherborn, Massachusetts, US21991–1996
Medway, Massachusetts, US21979–1986
Framingham, Massachusetts, US11991