Inventor · disambiguated record

William C. Chard

Also filed as: CHARD WILLIAM C

1 granted patent·366 citations·filing 1976–1976

58Inventor score

Technology areasE21B

Files withEXXON PRODUCTION RESEARCH CO1

Top patents by PatentIndex Score

1 record

0194US4068718AHydraulic fracturing method using sintered bauxite propping agentEXXON PRODUCTION RESEARCH CO·Filed 1976·Granted Jan 17, 1978·366 cites·15 claims

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