8 Utility and 2 Design Patents
#28 in Annandale, VA
#3,209 in Virginia
#253,452 in US
#518,164 in the World
rank by utility patentsForward Citations = 136
Company Filing History:
Other
Duchess Limited

4. 1 out of 1
Lake Effect Technologies, Inc.
where one patent can have more than one assignee
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