22 Utility and 3 Design Patents
#166 in Boston, MA
#3,919 in Massachusetts
#75,197 in US
#147,548 in the World
rank by utility patentsForward Citations = 442
Company Filing History:



4. 3 out of 2,019

5. 2 out of 980
Chunghwa Picture Tubes, Ltd.
where one patent can have more than one assignee
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