10 Utility Patents
#168 in Waltham, MA
#10,892 in Massachusetts
#199,983 in US
#406,146 in the World
Forward Citations = 154
Company Filing History:

Layne Christensen Company
Uchicago Argonne, LLC
4. 1 out of 19

5. 1 out of 1,236

where one patent can have more than one assignee
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