Hydroxyethylacrylate/acrylate copolymers as zinc sulfide scale inhibitors
Patent 4762626 Issued on August 9, 1988. Estimated Expiration Date: 
April 3, 2007. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
April 3, 2007. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3880765 Process for preparing low molecular weight water-soluble polymers Patent #: 4314044 InventorsAssigneeApplicationNo. 07/034307 filed on 04/03/1987US Classes:507/224, Polymer derived from acrylic acid monomer or derivative166/279, Material placed in pores of formation to treat resident fluid flowing into well166/310, Entraining or incorporating treating material in flowing earth fluid252/180, Plant or organic material containing507/927WELL CLEANING FLUIDExaminersPrimary: Guynn, Herbert B.Attorney, Agent or FirmInternational ClassesC09K 8/52 (20060101)C09K 8/528 (20060101) AbstractThe utilization of hydroxyethylacrylate/acrylic acid copolymer as a zinc sulfide scale inhibitor in oil well production processes. |
| ||||||||||||||
