Prosecution Insights
Last updated: April 19, 2026
Application No. 18/857,936

Vibratory Burrowing Probe for Investigating Subsurface Regions of Granular Media in IG and Low/Micro Gravity Conditions

Non-Final OA §103
Filed
Oct 18, 2024
Examiner
STEPHENSON, DANIEL P
Art Unit
3676
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Polyvalor Limited Partnership
OA Round
1 (Non-Final)
86%
Grant Probability
Favorable
1-2
OA Rounds
2y 5m
To Grant
61%
With Interview

Examiner Intelligence

Grants 86% — above average
86%
Career Allow Rate
1083 granted / 1252 resolved
+34.5% vs TC avg
Minimal -26% lift
Without
With
+-25.9%
Interview Lift
resolved cases with interview
Typical timeline
2y 5m
Avg Prosecution
9 currently pending
Career history
1261
Total Applications
across all art units

Statute-Specific Performance

§101
2.3%
-37.7% vs TC avg
§103
39.0%
-1.0% vs TC avg
§102
32.4%
-7.6% vs TC avg
§112
14.4%
-25.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1252 resolved cases

Office Action

§103
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 . Claim Rejections - 35 USC § 103 The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. This application currently names joint inventors. In considering patentability of the claims the examiner presumes that the subject matter of the various claims was commonly owned as of the effective filing date of the claimed invention(s) absent any evidence to the contrary. Applicant is advised of the obligation under 37 CFR 1.56 to point out the inventor and effective filing dates of each claim that was not commonly owned as of the effective filing date of the later invention in order for the examiner to consider the applicability of 35 U.S.C. 102(b)(2)(C) for any potential 35 U.S.C. 102(a)(2) prior art against the later invention. Claim(s) 1-3 and 18-20 is/are rejected under 35 U.S.C. 103 as being unpatentable over Bar-Cohen et al. (US 2004/0007387, hereafter Bar-Cohen) in view of Doster et al. (US 2020/0149367). With regards to claims 1 and 18, Bar-Cohen discloses a vibratory burrowing probe and method for probing subsurface regions within a granular medium (para 1, 2), said probe comprising: a probe tip (18) shaped for penetration thereof through the granular medium in an axial direction denoted by a longitudinal axis of the probe (para 30); and a vibratory mechanism (12) operably coupled to the probe tip and operable, in at least one mode of operation (para 41). Bar-Cohen shows all the limitation of the present invention except, it doesn’t explicitly disclose the tip, in at least one mode of operation, imparts non-longitudinal vibration thereto such that at least a partial component direction of said non-longitudinal vibration has a transversely oriented relationship to said longitudinal axis. Doster discloses an apparatus for downhole drilling which imparts non-longitudinal vibration thereto such that at least a partial component direction of said non-longitudinal vibration has a transversely oriented relationship to said longitudinal axis (para 38). It would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to combine the vibration disclosed in Doster with the apparatus taught in Bar-Cohen with a reasonable expectation of success. This would be done to increase drilling speed, reduce drag and allow for efficient energy transfer (Doster para 6). With regards to claims 2 and 18, Doster discloses said non-longitudinal vibration is lateral vibration whose peak vibrational amplitude cyclically alternates back and forth from a first location on a first side of a bisecting midplane of the probe and a second location on a second side of said bisecting midplane (Fig. 16-20, para 45, shows the source of the vibrations are symmetrically aligned with the longitudinal axis of the bit which would be read as the “bisecting midplane”). With regards to claims 3 and 19, Doster discloses said non-longitudinal vibration is a stirring-motion vibration whose peak vibrational amplitude cycles circumferentially around the longitudinal axis (Fig. 16-20, para 45, rotational motion of the adjacent plates will cause a stirring motion in the vibration). Allowable Subject Matter Claim 5 is allowed. Claims 4 and 6-17 are objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. The cited prior art all show similar features to those of the claimed invention. Any inquiry concerning this communication or earlier communications from the examiner should be directed to DANIEL P STEPHENSON whose telephone number is (571)272-7035. The examiner can normally be reached M-F 10am-6pm. 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, Tara Schimpf can be reached at 571-270-7741. 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. /DANIEL P STEPHENSON/Primary Examiner, Art Unit 3676
Read full office action

Prosecution Timeline

Oct 18, 2024
Application Filed
Sep 28, 2025
Non-Final Rejection — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12590505
COMPACT DOWNHOLE TOOL
2y 5m to grant Granted Mar 31, 2026
Patent 12584402
Method and Apparatus For Magnetic Ranging While Drilling
2y 5m to grant Granted Mar 24, 2026
Patent 12577851
WELLBORE FLOW CONTROL VALVE AND METHOD
2y 5m to grant Granted Mar 17, 2026
Patent 12571284
APPARATUS, SYSTEM AND PROCESS FOR REGULATING A CONTROL MECHANISM OF A WELL
2y 5m to grant Granted Mar 10, 2026
Patent 12571287
WELLHEAD AUTOMATIC POSITIONING METHOD AND SYSTEM OF PLUGGING AND PERFORATING OPERATION MACHINE
2y 5m to grant Granted Mar 10, 2026
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
86%
Grant Probability
61%
With Interview (-25.9%)
2y 5m
Median Time to Grant
Low
PTA Risk
Based on 1252 resolved cases by this examiner. Grant probability derived from career allow rate.

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