Inventor · disambiguated record

Willis A. Weigand

Also filed as: WEIGAND WILLIS A

3 granted patents·264 citations·filing 1984–1992

78Inventor score

Technology areasC09K C04B

Files withHALLIBURTON CO2 GRACE W R & CO1

Top patents by PatentIndex Score

3 records

0195US4687516ALiquid fluid loss control additive for oil field cementsHALLIBURTON CO·Filed 1984·Granted Aug 18, 1987·145 cites·20 claims
0293US4588032AFluid spacer composition for use in well cementingHALLIBURTON CO·Filed 1984·Granted May 13, 1986·95 cites·16 claims
0371US5294256AAdditives for hydraulic cement compositionsGRACE W R & CO·Filed 1992·Granted Mar 15, 1994·24 cites·18 claims

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