249 Utility Patents
#1 in Duncan, OK
#5 in Oklahoma
#749 in US
#1,269 in the World
Forward Citations = 13,161
Company Filing History:



Halliburton Company

Other
4. 2 out of 1,851

5. 1 out of 20
Lignotech Usa, Inc.
where one patent can have more than one assignee
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