Inventor · disambiguated record
Norman W. Read
Also filed as: READ NORMAN W · READ NORMAN WELDON
10 granted patents·284 citations·filing 1975–1988
91Inventor score
Files withDRESSER IND10
Top patents by PatentIndex Score
10 records- 0192US4134455AOilwell tubing tester with trapped valve sealDRESSER IND·Filed 1977·Granted Jan 16, 1979·95 cites·5 claims
- 0283US4022427ASleeve valve mandrel and seal means for indexing valve assemblyDRESSER IND·Filed 1975·Granted May 10, 1977·41 cites·3 claims
- 0371US4387767ASubsurface safety valve system with hydraulic packerDRESSER IND·Filed 1980·Granted Jun 14, 1983·40 cites·15 claims
- 0459US4508173AFlow control valve for use on oil and gas wells or the likeDRESSER IND·Filed 1983·Granted Apr 2, 1985·25 cites·9 claims
- 0555US4066241ASeal means for valve assemblyDRESSER IND·Filed 1975·Granted Jan 3, 1978·14 cites·7 claims
- 0652US4022426AIndexing valve mechanismDRESSER IND·Filed 1975·Granted May 10, 1977·17 cites·10 claims
- 0748US4700782AFlow control valve for use in oil and gas wells and the likeDRESSER IND·Filed 1986·Granted Oct 20, 1987·20 cites·8 claims
- 0847US4852654AWireline hydraulic isolation packer systemDRESSER IND·Filed 1988·Granted Aug 1, 1989·20 cites·6 claims
- 0934US4749036ADual bore well treating toolDRESSER IND·Filed 1986·Granted Jun 7, 1988·8 cites·10 claims
- 1030US4649995AWell treating apparatusDRESSER IND·Filed 1985·Granted Mar 17, 1987·4 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →