50 Utility and 1 Design Patents
#170 in Houston, TX
#1,396 in Texas
#20,275 in US
#37,952 in the World
rank by utility patentsForward Citations = 1,378
Company Filing History:

Varel International Ind., L.p.



Xr Reserve LLC
4. 6 out of 10
Xr Downhole LLC
5. 3 out of 1,238
Dresser Industries, Inc.
where one patent can have more than one assignee
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