Prosecution Insights
Last updated: April 19, 2026
Application No. 18/934,974

WIDE FREQUENCY RANGE UNDERGROUND TRANSMITTER

Non-Final OA §DP
Filed
Nov 01, 2024
Examiner
WILSON, BRIAN P
Art Unit
2689
Tech Center
2600 — Communications
Assignee
Underground Magnetics, Inc.
OA Round
1 (Non-Final)
62%
Grant Probability
Moderate
1-2
OA Rounds
2y 8m
To Grant
99%
With Interview

Examiner Intelligence

Grants 62% of resolved cases
62%
Career Allow Rate
495 granted / 792 resolved
+0.5% vs TC avg
Strong +42% interview lift
Without
With
+42.2%
Interview Lift
resolved cases with interview
Typical timeline
2y 8m
Avg Prosecution
26 currently pending
Career history
818
Total Applications
across all art units

Statute-Specific Performance

§101
1.7%
-38.3% vs TC avg
§103
48.0%
+8.0% vs TC avg
§102
18.8%
-21.2% vs TC avg
§112
24.5%
-15.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 792 resolved cases

Office Action

§DP
DETAILED ACTION Notice of Pre-AIA or AIA Status The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . Double Patenting The nonstatutory double patenting rejection is based on a judicially created doctrine grounded in public policy (a policy reflected in the statute) so as to prevent the unjustified or improper timewise extension of the “right to exclude” granted by a patent and to prevent possible harassment by multiple assignees. A nonstatutory double patenting rejection is appropriate where the conflicting claims are not identical, but at least one examined application claim is not patentably distinct from the reference claim(s) because the examined application claim is either anticipated by, or would have been obvious over, the reference claim(s). See, e.g., In re Berg, 140 F.3d 1428, 46 USPQ2d 1226 (Fed. Cir. 1998); In re Goodman, 11 F.3d 1046, 29 USPQ2d 2010 (Fed. Cir. 1993); In re Longi, 759 F.2d 887, 225 USPQ 645 (Fed. Cir. 1985); In re Van Ornum, 686 F.2d 937, 214 USPQ 761 (CCPA 1982); In re Vogel, 422 F.2d 438, 164 USPQ 619 (CCPA 1970); In re Thorington, 418 F.2d 528, 163 USPQ 644 (CCPA 1969). A timely filed terminal disclaimer in compliance with 37 CFR 1.321(c) or 1.321(d) may be used to overcome an actual or provisional rejection based on nonstatutory double patenting provided the reference application or patent either is shown to be commonly owned with the examined application, or claims an invention made as a result of activities undertaken within the scope of a joint research agreement. See MPEP § 717.02 for applications subject to examination under the first inventor to file provisions of the AIA as explained in MPEP § 2159. See MPEP § 2146 et seq. for applications not subject to examination under the first inventor to file provisions of the AIA . A terminal disclaimer must be signed in compliance with 37 CFR 1.321(b). The filing of a terminal disclaimer by itself is not a complete reply to a nonstatutory double patenting (NSDP) rejection. A complete reply requires that the terminal disclaimer be accompanied by a reply requesting reconsideration of the prior Office action. Even where the NSDP rejection is provisional the reply must be complete. See MPEP § 804, subsection I.B.1. For a reply to a non-final Office action, see 37 CFR 1.111(a). For a reply to final Office action, see 37 CFR 1.113(c). A request for reconsideration while not provided for in 37 CFR 1.113(c) may be filed after final for consideration. See MPEP §§ 706.07(e) and 714.13. The USPTO Internet website contains terminal disclaimer forms which may be used. Please visit www.uspto.gov/patent/patents-forms. The actual filing date of the application in which the form is filed determines what form (e.g., PTO/SB/25, PTO/SB/26, PTO/AIA /25, or PTO/AIA /26) should be used. A web-based eTerminal Disclaimer may be filled out completely online using web-screens. An eTerminal Disclaimer that meets all requirements is auto-processed and approved immediately upon submission. For more information about eTerminal Disclaimers, refer to www.uspto.gov/patents/apply/applying-online/eterminal-disclaimer. Claims 1-5, 7-14 and 16-18 of Application No. 18/934,974 are rejected on the ground of nonstatutory double patenting as being unpatentable over the claims of U.S. Patent No(s). US 11,802,477 B2 and US 12,158,069 B2. Although the claims at issue are not identical, they are not patentably distinct from each other because the claims of Application No. 18/934,974 are broader and an obvious variant of the claims of U.S. Patent No(s). US 11,802,477 B2 and US 12,158,069 B2 respectively. Claim Objections Claims 4 and 11 are objected to because of the following informalities: Claim 4 recites “a first wire coil…a second wire coil”. It is presumed to recite “the first wire coil…the second wire coil”. See claim 1, lines 10 and 13. Claim 11 recites “a first wire coil…a second wire coil”. It is presumed to recite “the first wire coil…the second wire coil”. See claim 9, lines 6 and 9. Appropriate correction is required. Allowable Subject Matter Claims 1 and 9 would be allowable if rewritten or amended to overcome the objections and nonstatutory double patenting rejection set forth above in this Office action. The following is a statement of reasons for the indication of allowable subject matter: With respect to claim 1, Bittar (US 2011/0006773 A1) discloses a horizontal directional drilling (HDD) system (see at least Figures 1 and 7A, items 18 and 702 | [0020] note the desired horizontal path (18) | [0032] note 12 inch borehole (702) passing horizontally through a formation (704) at a depth of 1020 feet), comprising: an HDD drilling rig (see at least Figure 1, item 2 | [0018]); a plurality of drill rods coupled together to form a drill string, the drill string operatively coupled to the HDD drilling rig (see at least Figure 1, item 8 | [0018]); and a drill head carried by an end of the drill string opposite the HDD drilling rig, the drill head including an underground transmitter, the underground transmitter configured for wireless communication (see at least Figure 1, item 26 | [0020] note the bottom-hole assembly includes a tool (26) | [0042] note the tool (26) includes multiple tilted-antennas that transmit encoded electromagnetic signals including at least tool orientation information to the surface at different frequencies)), the underground transmitter comprising: a control circuitry for transmitting data associated with an operation of the drill head, the control circuitry (see at least [0042] note the tool (26) includes multiple tilted-antennas that transmit encoded electromagnetic signals including at least tool orientation information to the surface at different frequencies | [0024] note control circuitry in Figure 2 of US Patent. No. 7,265,552 | [0019] note orientation information) including: a first wire coil of a plurality of distinct wire coils (see at least [0042] note multiple tilted-antennas | [0025] note the tilted-antenna is comprised of coils), and a second wire coil of the plurality of distinct wire coils (see at least [0042] note multiple tilted-antennas); and a multi-coil antenna assembly including: the plurality of distinct wire coils, each one of the plurality of distinct wire coils having a different inductance associated therewith and thereby capable of transmitting in a separate frequency range (see at least [0042] note different frequencies | [0025] note the number of loops or turns affects inductance), the control circuitry coupled with the plurality of distinct wire coils to control which of the plurality of distinct wire coils is activated and thereby generating data signals at a given time by selectably actuating one or the other of the first wire coil or the second wire coil (see at least [0042] note the multiple tilted-antennas operate at different frequencies and fire at different times). With respect to the other limitations, paragraph [0024] of Bittar refers US Patent. No. 7,265,552. Figure 2 of US Patent. No. 7,265,552 illustrates what could be interpreted as a first switch and second switch via the transmitter enable circuit (30). Bittar 798ꞌ (US 2009/0309798 A1) illustrates an HDD system comprising a multi-coil assembly including an antenna core, and the plurality of distinct wire coils positioned proximate to the antenna core, each one of the plurality of distinct wire coils having a different inductance (see at least the abstract, note tilted-antennas | Figure 2 | [0008-0010] | [0021] note the antenna (100) comprises multiple coils of wire surrounding a central core (105)). However, Bittar (US 2011/0006773 A1), Bittar 552ꞌ (US 7,265,552 B2), Bittar 798ꞌ (US 2009/0309798 A1), Montgomery (US 2011/0309948 A1), Johnson (US 2,054,424 A), Omeragic (US 2019/0063205 A1), and Beigl (US 7,356,495 B2) do not disclose and/or fairly suggest a first switch connected to a first wire coil of a plurality of distinct wire coils, the first switch operable via an optical signal receivable from a first light source, and a second switch connected to a second wire coil of the plurality of distinct wire coils, the second switch operable via an optical signal from a second light source; and the control circuitry coupled with the plurality of distinct wire coils to control which of the plurality of distinct wire coils is activated and thereby generating data signals at a given time by selectably actuating one or the other of the first light source or the second light source. Moreover, modifying Bittar (US 2011/0006773 A1), Bittar 552ꞌ (US 7,265,552 B2) and Bittar 798ꞌ (US 2009/0309798 A1) to achieve the claimed limitations can only be achieved by hindsight. Claim 9 recites limitations similar to claim 1, and is allowable as indicated above. Claims 2-5, 7, 8, 10-14 and 16-18 are allowable by virtue of their dependency. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to BRIAN WILSON whose telephone number is 571-270-5884. The examiner can normally be reached Monday-Friday 9:00-5:00pm. Examiner interviews are available via telephone, in-person, and video conferencing using a USPTO supplied web-based collaboration tool. To schedule an interview, applicant is encouraged to use the USPTO Automated Interview Request (AIR) at http://www.uspto.gov/interviewpractice. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, DAVETTA GOINS can be reached at 571-272-2957. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of published or unpublished applications may be obtained from Patent Center. Unpublished application information in Patent Center is available to registered users. To file and manage patent submissions in Patent Center, visit: https://patentcenter.uspto.gov. Visit https://www.uspto.gov/patents/apply/patent-center for more information about Patent Center and https://www.uspto.gov/patents/docx for information about filing in DOCX format. For additional questions, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /BRIAN WILSON/Primary Examiner, Art Unit 2689
Read full office action

Prosecution Timeline

Nov 01, 2024
Application Filed
Jan 17, 2026
Non-Final Rejection — §DP (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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DIRECTIONAL DRILLING COMMUNICATION PROTOCOLS, APPARATUS AND METHODS
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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

1-2
Expected OA Rounds
62%
Grant Probability
99%
With Interview (+42.2%)
2y 8m
Median Time to Grant
Low
PTA Risk
Based on 792 resolved cases by this examiner. Grant probability derived from career allow rate.

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