Organic compounds -- part of the class 532-570 series – Organic compounds – Sulfonic acids or salts thereof
Reexamination Certificate
2007-09-25
2007-09-25
Witherspoon, Sikarl A. (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Sulfonic acids or salts thereof
C562S109000, C106S638000, C106S802000, C106S810000
Reexamination Certificate
active
11198027
ABSTRACT:
Disulfonate salts of 2,4-pentanedione and methods for making such salts are described. The disulfonate salts are useful as cement dispersants. Cement compositions including such salts, methods for making cement compositions including such salts, and methods for performing cementing operations using such cement compositions are also described.
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Lewis Samuel J.
Szymanski Michael J.
Halliburton Energy Service,s Inc.
Haynes & Boone
Roddy Craig W.
Witherspoon Sikarl A.
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