1. Ncs Multistage Inc. (31 from 70 patents)

2. Bj Services Company (10 from 266 patents)

3. Baker Hughes Corporation (7 from 5,728 patents)

4. Other (1 from 832,843 patents)

5. Bj Services Company, U.s.a. (1 from 33 patents)

6. Repeat Precision, LLC (1 from 9 patents)

7. Ncs Oilfield Services Canada, Inc. (1 from 4 patents)

8. Variperm (canada) Limited (1 from 1 patent)

9. Bj Services Company Canada (4 patents)

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