Prosecution Insights
Last updated: October 02, 2026
Application No. 18/226,650

RETRACTABLE DRILL BIT

Non-Final OA §102
Filed
Jul 26, 2023
Examiner
GAY, JENNIFER HAWKINS
Art Unit
3619
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Mueller International LLC
OA Round
3 (Non-Final)
85%
Grant Probability
Favorable
3-4
OA Rounds
0m
Est. Remaining
94%
With Interview

Examiner Intelligence

Grants 85% — above average
85%
Career Allowance Rate
1039 granted / 1221 resolved
+33.1% vs TC avg
Moderate +9% lift
Without
With
+8.6%
Interview Lift
resolved cases with interview
Typical timeline
2y 4m
Avg Prosecution
27 currently pending
Career history
1248
Total Applications
across all art units

Statute-Specific Performance

§101
1.0%
-39.0% vs TC avg
§103
38.8%
-1.2% vs TC avg
§102
24.3%
-15.7% vs TC avg
§112
31.4%
-8.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1221 resolved cases

Office Action

§102
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 . Continued Examination Under 37 CFR 1.114 A request for continued examination under 37 CFR 1.114, including the fee set forth in 37 CFR 1.17(e), was filed in this application after final rejection. Since this application is eligible for continued examination under 37 CFR 1.114, and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114. Applicant's submission filed on June 24, 2026 has been entered. Response to Amendment This Action is in response to Applicant’s Reply of June 24, 2026. Claims 2, 12, and 18 have been cancelled. Applicant’s amendment to claims 1 and 6-8 overcome the previously presented 35 USC 112(a) rejection thereof. Applicant’s amendment to claims 1, 8, and 10 overcome the previously presented 35 USC 112(b) rejection thereof. Response to Arguments Applicant's arguments with respect to an art rejection of claim 8 have been fully considered but they are not persuasive. Applicant has argued that Sanogo et al. fails to disclose at least one extension of a collar that engages both the at least one recess of the stem and the at least one recess of the bit in the penetrating configuration, and the at least one extension is axially spaced from the at least one recess of the bit in the rotatable configuration. While the embodiment of Figures 1-7 of Sanogo et al. fails to disclose this feature, the embodiment shown in Figures 15-19 does as indicated in paragraphs [0056]-[0061]. The collar 270 includes extensions 250 and 282 – [0059] that engage with a recess shown at 296 of a stem 242 and a recess 280 of a bit 230 when the bit is to be rotated with the stem and disengages when the bit and stem are to be rotated independently of each other. Claim Rejections - 35 USC § 102 The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(2) the claimed invention was described in a patent issued under section 151, or in an application for patent published or deemed published under section 122(b), in which the patent or application, as the case may be, names another inventor and was effectively filed before the effective filing date of the claimed invention. Claim(s) 8 is/are rejected under 35 U.S.C. 102(a)(2) as being anticipated by Sanogo et al. (US 2024/0100609, Sanogo). Sanogo discloses a retractable pilot bit 210 – Fig 15-19 comprising: a stem 242 defining at least one recess at 296 – Fig 16, [0058] and a rotational axis Fig 15 and configured to rotate in a first rotational direction about the rotational axis [0057]; a collar 270 coupled to the stem Fig 15, the collar defining at least one extension 250, 282 – [0059] and configured to rotate in the first rotational direction [0057]; and a bit 230 defining at least one recess 280 – [0059], configured to rotate with relative to-the stem in the first rotational direction in a penetrating configuration [0059] – can rotate in both directions in the penetrating configuration however the claim language does not preclude this and configured to rotate in a second rotational direction opposite the first rotational direction in a rotatable configuration [0060] – can rotate in both directions in the rotatable configuration however the claim language does not preclude this; wherein the stem and the collar are configured to allow removal of the bit from the stem [0012], [0061]; and wherein the at least one extension engages both the at least one recess of the stem and the at least one recess of the bit in the penetrating configuration, and the at least one extension is axially spaced from the at least one recess of the bit in the rotatable configuration Fig 16-19, [0059]-[0061]. Allowable Subject Matter Claims 1, 3-7, 9-11, 13-17, and 19-23 are allowed. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to JENNIFER H GAY whose telephone number is (571)272-7029. The examiner can normally be reached Monday through Thursday, 6-3:30 and every other Friday 6-11. 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, Anita Y Coupe can be reached at (571)270-3614. 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. /JENNIFER H GAY/Primary Examiner, Art Unit 3619 JHG 9/3/2026
Read full office action

Prosecution Timeline

Show 2 earlier events
Mar 03, 2026
Response Filed
Mar 25, 2026
Final Rejection mailed — §102
May 24, 2026
Request for Continued Examination
Jun 24, 2026
Examiner Interview Summary
Jun 24, 2026
Request for Continued Examination
Jun 24, 2026
Applicant Interview (Telephonic)
Jul 02, 2026
Response after Non-Final Action
Sep 08, 2026
Non-Final Rejection mailed — §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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ACTIVE TORSIONAL ISOLATOR AND DAMPER
2y 11m to grant Granted Sep 29, 2026
Patent 12747658
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Patent 12735946
A DRILL HEAD FOR USE WITH MICROTUNNELING APPARATUS
1y 9m to grant Granted Sep 15, 2026
Patent 12722219
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3y 0m to grant Granted Sep 01, 2026
Patent 12723487
AXIALLY AND ROTATIONALLY LOCKED MODULAR VALVE ASSEMBLY SYSTEM
2y 7m to grant Granted Sep 01, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

3-4
Expected OA Rounds
85%
Grant Probability
94%
With Interview (+8.6%)
2y 4m (~0m remaining)
Median Time to Grant
High
PTA Risk
Based on 1221 resolved cases by this examiner. Grant probability derived from career allowance rate.

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