CAMBRIDGE TECHNOLOGY DEVELOPMENT, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
H04N PICTORIAL COMMUNICATION, e.g. TELEVISION 2240
 
 
 
G09G ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION 1150

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6211903 Video telephone headsetMar 22, 99Apr 03, 01[H04N]
5886735 Video telephone headsetJan 14, 97Mar 23, 99[H04N]
5751275 Two-- and three--dimensional trackball with coordinate transformationsNov 14, 94May 12, 98[G09G]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5854623 Two- and three-dimensional trackball with enhanced measurement opticsExpiredNov 16, 95Dec 29, 98[G09G]

Top Inventors for This Owner

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