Prosecution Insights
Last updated: August 17, 2026
Application No. 18/698,313

Drill bit with improved removal of the drill core

Final Rejection §112
Filed
Apr 03, 2024
Priority
Oct 11, 2021 — EU 21201901.2 +2 more
Examiner
SALONE, BAYAN
Art Unit
3726
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Hilti Aktiengesellschaft
OA Round
2 (Final)
76%
Grant Probability
Favorable
3-4
OA Rounds
4m
Est. Remaining
93%
With Interview

Examiner Intelligence

Grants 76% — above average
76%
Career Allowance Rate
618 granted / 812 resolved
+6.1% vs TC avg
Strong +17% interview lift
Without
With
+17.3%
Interview Lift
resolved cases with interview
Typical timeline
2y 9m
Avg Prosecution
28 currently pending
Career history
834
Total Applications
across all art units

Statute-Specific Performance

§101
0.6%
-39.4% vs TC avg
§103
51.7%
+11.7% vs TC avg
§102
27.3%
-12.7% vs TC avg
§112
19.0%
-21.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 812 resolved cases

Office Action

§112
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 . Response to Arguments Applicant’s arguments with respect to claim(s) 15 and 17-28 have been considered but are moot because the new ground of rejection does not rely on any reference applied in the prior rejection of record for any teaching or matter specifically challenged in the argument. Claim Rejections - 35 USC § 112 The following is a quotation of 35 U.S.C. 112(b): (b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Claims 15 and 17-32 are rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. Claim 15 recites the limitation "…the circumference of the first drilling segment" in lines 13 and 14. There is insufficient antecedent basis for this limitation in the claim. Claim 18 recites the limitation "…the direction of a second upper side opposite to the underside" in line 3 of the claim. There is insufficient antecedent basis for this limitation in the claim. Claim 19 recites the limitation "…the circumference of the second drilling segment" in line 3 of the claim. There is insufficient antecedent basis for this limitation in the claim. Claim 22 recites the limitation "…the circumferential direction" in lines 2 and 3 of the claim. There is insufficient antecedent basis for this limitation in the claim. Claim 24 recites the limitation "…the direction of a third upper side" in lines 2 and 3 of the claim. There is insufficient antecedent basis for this limitation in the claim. Claim 25 recites the limitation "…the circumferential direction over the circumference of the third drilling segment" in line 3 of the claim. There is insufficient antecedent basis for this limitation in the claim. Claim 31 recites the limitation "…the circumferential direction " in lines 3 and 4 of the claim. There is insufficient antecedent basis for this limitation in the claim. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Pearce et al. (US 2017/0362900 A1) discloses a drill bit, comprising: a drilling shaft 20 having a cylinder (see figure 5) with a longitudinal axis 12, the cylinder has, in a plane perpendicular to the longitudinal axis 12, an outside diameter, an inside diameter and a shaft width, and a plurality of drilling segments 34A, 34B spaced apart from one another in a circumferential direction and fastened by an underside to the drilling shaft 20, the plurality of drilling segments 34A, 34B include a first drilling segment 34A with a first inner lateral surface having a first inner distance from the longitudinal axis perpendicular to the longitudinal axis 12, and a second drilling segment 34B with a second inner lateral surface having a second inner distance from the longitudinal axis perpendicular to the longitudinal axis 12 (See figures 5 and 7) however, is silent to any disclosure that the first inner lateral surface of the first drilling segment is formed as a portion of a first inner cone tapering in a direction of a first upper side opposite to the underside of the first drilling segment. Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to BAYAN SALONE whose telephone number is (571)270-7739. The examiner can normally be reached M-F 9-60 PM. 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, Sunil Singh can be reached at (571)272-3460. 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. /BAYAN SALONE/Primary Examiner, Art Unit 3726
Read full office action

Prosecution Timeline

Apr 03, 2024
Application Filed
Mar 23, 2026
Non-Final Rejection mailed — §112
Jun 17, 2026
Response Filed
Jul 30, 2026
Final Rejection mailed — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12686059
CUTTING TOOL
2y 8m to grant Granted Jul 21, 2026
Patent 12686060
TOOL HOLDER FOR A MACHINE TOOL
2y 10m to grant Granted Jul 21, 2026
Patent 12685393
MOUNTING BRACKET ASSEMBLY FOR APPLIANCE
2y 0m to grant Granted Jul 21, 2026
Patent 12678864
CUTTING INSERT
2y 10m to grant Granted Jul 14, 2026
Patent 12660886
METHODS AND DEVICES FOR RETROFITTING FOOTWEAR TO INCLUDE A REEL BASED CLOSURE SYSTEM
6y 11m to grant Granted Jun 23, 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
76%
Grant Probability
93%
With Interview (+17.3%)
2y 9m (~4m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 812 resolved cases by this examiner. Grant probability derived from career allowance rate.

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