(19)
(11) EP 3 469 394 B8

(12) CORRECTED EUROPEAN PATENT SPECIFICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 B1)

(48) Corrigendum issued on:
12.04.2023 Bulletin 2023/15

(45) Mention of the grant of the patent:
22.02.2023 Bulletin 2023/08

(21) Application number: 17810991.4

(22) Date of filing: 08.06.2017
(51) International Patent Classification (IPC): 
G01S 13/88(2006.01)
G01V 3/17(2006.01)
G01C 21/20(2006.01)
G05D 1/00(2006.01)
G01V 3/10(2006.01)
 G01V 3/165(2006.01)
H02G 9/06(2006.01)
G01C 21/34(2006.01)
G05D 1/10(2006.01)
G01V 3/15(2006.01)
(52) Cooperative Patent Classification (CPC):
G01V 3/15; G01V 3/10
(86) International application number:
PCT/US2017/036483
(87) International publication number:
WO 2017/214353 (14.12.2017 Gazette 2017/50)

(54)

METHOD AND APPARATUS FOR SIMULTANEOUS INDUCTIVE EXCITATION AND LOCATING OF UTILITIES

VERFAHREN UND VORRICHTUNG ZUR SIMULTANEN INDUKTIVEN ANREGUNG UND ORTUNG VON VERSORGUNGSLEITUNGEN

PROCÉDÉ ET APPAREIL D'EXCITATION PAR INDUCTION ET DE LOCALISATION SIMULTANÉES D'UTILITAIRE

(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

(30) Priority: 09.06.2016 US 201662347814 P
07.06.2017 US 201715616704

(43) Date of publication of application:
17.04.2019 Bulletin 2019/16

(73) Proprietor: Optimal Ranging, Inc.
Santa Clara CA 95050 (US)

(72) Inventors:
  • GUDMUNDSSON, Thorkell
    San Jose California 95124 (US)
  • WAITE, James W.
    Los Gatos California 95032 (US)
  • GARGOV, Dimitar
    Merced California 95340 (US)

(74) Representative: Gill, David Alan 
WP Thompson 138 Fetter Lane
London EC4A 1BT
London EC4A 1BT (GB)


(56) References cited: : 
WO-A1-2014/093096
US-A1- 2005 237 061
US-A1- 2006 055 584
US-A1- 2014 266 213
 US-A- 4 600 356
US-A1- 2005 237 061
US-A1- 2008 018 334
   
       
    Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).