Nova Patents
USRE33708E

Untitled record

Abstract

This record has no abstract on file.

Term

Term ended

Expired 21 November 2007, 18.8 years ago.

  1. Priority
  2. Filed
  3. Granted
  4. Expired
  5. Today

Every citation, both waysCites: the store holds 8 of 9

Citations
DocumentRelationOfficeCited during
WO9216719A1Cited byWorld Intellectual Property Organization (WIPO)International search
US9273547B2Cited byUnited States of AmericaApplicant
US9982525B2Cited byUnited States of AmericaApplicant
US10900346B2Cited byUnited States of AmericaSearch report
US5321893ACited byUnited States of AmericaSearch report
US6480119B1Cited byUnited States of AmericaSearch report
US2003233759A1Cited byUnited States of AmericaPre-grant
US5155916ACited byUnited States of AmericaSearch report
US10890062B2Cited byUnited States of AmericaApplicant
US6957156B2Cited byUnited States of AmericaSearch report
US2010258321A1Cited byUnited States of AmericaPre-grant
US2010175472A1Cited byUnited States of AmericaPre-grant
US5806194ACited byUnited States of AmericaSearch report
US2004149004A1Cited byUnited States of AmericaPre-grant
US5564193ACited byUnited States of AmericaSearch report
US6842990B2Cited byUnited States of AmericaSearch report
US6966211B2Cited byUnited States of AmericaApplicant
US2005143917A1Cited byUnited States of AmericaPre-grant
US8061047B2Cited byUnited States of AmericaSearch report
US8028577B2Cited byUnited States of AmericaSearch report
US6321456B1Cited byUnited States of AmericaSearch report
US10584575B2Cited byUnited States of AmericaApplicant
US5452518ACited byUnited States of AmericaSearch report
GB1578053ACitesUnited KingdomSearch report
US3862499ACitesUnited States of AmericaSearch report
US3935642ACitesUnited States of AmericaSearch report
US4021774ACitesUnited States of AmericaSearch report
US4071959ACitesUnited States of AmericaSearch report
US4083117ACitesUnited States of AmericaSearch report
US4163324ACitesUnited States of AmericaSearch report
US4199869ACitesUnited States of AmericaSearch report
Composite Catalog of Oil Field Equipment & Services , vol. 3 31st Revision, 1974 1975, p. 1825.Non-patent–Search report
Answer and Counterclaims by Drexel Instruments, Inc. and Sharewell, Inc. to Plaintiff s Second Amended Complaint.Non-patent–Search report
Answer by Drexel Equipment (U.K.) Ltd. to Plaintiff s Second Amended Complaint.Non-patent–Search report
Encyclopedia Britannica, vol. 10, Game Birds to Gun Metal, p. 171, published 1960.Non-patent–Search report
Magnetic Compasses and Magnetometers by Alfred Hine; pp. 1 7 and 105 107, published 1968, London.Non-patent–Search report
Magnetic Well Surveying Compasses (six pages), Sperry Sun Well Surveying Company dated 12 15 56.Non-patent–Search report
Smith International, Non Magnetic Collar Length Selection Chart (two pages), dated 1976.Non-patent–Search report
Determining Downhole Magnetic Interference on Directional Surveys by A. C. Scott et al., SPE 7748, 1979 (six pages).Non-patent–Search report
Borehole Position Uncertainty Analysis of Measuring Methods and Derivation of Systematic Error Model by Wolff et al, pp. 2339 2350; 1981, Society of Petroleum Engineers of AIME.Non-patent–Search report
Magnetic Properties of Nonmagnetic Drill Collars and Their Relation to Survey Compass Error by Edward et al, pp. 229 241; Geoexploration, 17 (1979).Non-patent–Search report
Determining Nonmagnetic Survey Collar Requirements , World Oil, May 1976, vol. 182, No. 6, pp. 79, 80.Non-patent–Search report
Sperry Sun, Guide for Selecting Non Magnetic Drill Collars (two pages).Non-patent–Search report