U.S. federal trademark · Serial No. 73720090 · Reg. No. 1533652
TREATING OF OIL, GAS, WATER, INJECTION AND STORAGE WELLS WITH NONDAMAGING WORKOVER AND COMPLETION FLUIDS HAVING WATER SOLUBLE BRIDGING AGENTS FOR BRIDGING AND TEMPORARILY PLUGGING PRODUCTIVE FORMATIONS AND THEREAFTER REMOVING SUCH FLUIDS
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