Raymond E Callahan, Jr

This inventor holds 2 USPTO granted patents. Top assignees: Dolby Laboratories Licensing Corporation, Sony Cinema Products Corporation, Sony Corporation. Active years: 1997-2003.

USPTO Granted Patents = 2

% Patents Active = 100.0

Average Co-Inventor Count = 2.9

ph-index = 2

Forward Citations = 54(Granted Patents)

Company Filing History:

1 out of 2,727

Dolby Laboratories Licensing Corporation

patents

1 out of 22

Sony Cinema Products Corporation

where one patent can have more than one assignee

Years Active: 1997-2003

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2 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6624873 - Matrix-encoded surround-sound channels in a discrete digital sound format (2003-09-23),

2. 5639585 - System for photographically recording digital data and analog (1997-06-17),

Profile summary based on public USPTO records.

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