Prosecution Insights
Last updated: April 19, 2026
Application No. 18/814,855

Pedicle Screw

Non-Final OA §102
Filed
Aug 26, 2024
Examiner
YANG, ANDREW
Art Unit
3775
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Chanpin Medtak Co. Ltd.
OA Round
1 (Non-Final)
84%
Grant Probability
Favorable
1-2
OA Rounds
2y 10m
To Grant
94%
With Interview

Examiner Intelligence

Grants 84% — above average
84%
Career Allow Rate
1078 granted / 1284 resolved
+14.0% vs TC avg
Moderate +10% lift
Without
With
+10.4%
Interview Lift
resolved cases with interview
Typical timeline
2y 10m
Avg Prosecution
40 currently pending
Career history
1324
Total Applications
across all art units

Statute-Specific Performance

§101
3.0%
-37.0% vs TC avg
§103
32.1%
-7.9% vs TC avg
§102
37.9%
-2.1% vs TC avg
§112
13.6%
-26.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1284 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 . Drawings The drawings are objected to under 37 CFR 1.83(a). The drawings must show every feature of the invention specified in the claims. Therefore, the plurality of assembly members (Claim 6) must be shown or the feature(s) canceled from the claim(s). No new matter should be entered. Corrected drawing sheets in compliance with 37 CFR 1.121(d) are required in reply to the Office action to avoid abandonment of the application. Any amended replacement drawing sheet should include all of the figures appearing on the immediate prior version of the sheet, even if only one figure is being amended. The figure or figure number of an amended drawing should not be labeled as “amended.” If a drawing figure is to be canceled, the appropriate figure must be removed from the replacement sheet, and where necessary, the remaining figures must be renumbered and appropriate changes made to the brief description of the several views of the drawings for consistency. Additional replacement sheets may be necessary to show the renumbering of the remaining figures. Each drawing sheet submitted after the filing date of an application must be labeled in the top margin as either “Replacement Sheet” or “New Sheet” pursuant to 37 CFR 1.121(d). If the changes are not accepted by the examiner, the applicant will be notified and informed of any required corrective action in the next Office action. The objection to the drawings will not be held in abeyance. 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)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. Claim(s) 1-5, 7-10 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Tsuang et al. (U.S. Patent No. 9877751). Tsuang et al. a pedicle screw comprising: a nail body (100); a positioning part (210) having a first side (211) and a second side (213) opposite to the first side, the first side being disposed at an end of the nail body (Figure 2); and a holding part (200) disposed on the second side of the positioning part (Figure 2), the holding part having left and right ends exhibiting a symmetrical arc shape (Indicated by the arrows in the following figure). PNG media_image1.png 469 430 media_image1.png Greyscale Regarding claim 2, the nail body includes a screw shape (see above). Regarding claim 3. The pedicle screw of claim 1, wherein the positioning part is rotatable with respect to the nail body (Column 5, Lines 20-24). Regarding claim 4, the arc shape includes a shape similar to a scimitar sword or a sickle (as seen above, the arc portion has a sickle shape). Regarding claim 5, the positioning part and the holding part are integrated with each other (via an annular notch 230). Regarding claim 7, the holding part has a fixed length arrangement (See figure above) or a variable length arrangement. Regarding claim 8, the positioning part (210) includes an accommodation space (214). Regarding claim 9, the holding part (200) is formed in both of a front side and a back side thereof with an opening (223) communicating with the accommodation space (Figure 1, 2), and the opening passes through the front side and the back side of the holding part (Figure 1, 2), in which the front side of the holding part is positioned in an inner side of the arc shape and the back side of the holding part is positioned in an outer side of the arc shape (as seen in figures 1 and 2, the front side the side facing out of the page, and the back side is the other side which is on the outer side of the arc shape pointed to in the figure previously provided. Regarding claim 10, the back side a front side of a holding part of another pedicle screw is stacked on the back side of the holding part of the pedicle screw (Figure 3C, with the interconnected rod 600, the elements are stacked together). Claim(s) 1 and 6 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Bankoski et al. (U.S. Patent No. 7758584). Bankoski et al. discloses a pedicle screw comprising: a nail body (PS); a positioning part (20) having a first side and a second side opposite to the first side (See Figure below), PNG media_image2.png 464 416 media_image2.png Greyscale the first side being disposed at an end of the nail body (See above); and a holding part (20) disposed on the second side of the positioning part (See above), the holding part having left and right ends exhibiting a symmetrical arc shape (Indicated by the arrows in the following figure). PNG media_image3.png 727 524 media_image3.png Greyscale Regarding claim 6, the positioning part and the holding part are assembled with each other through a plurality of assembly members (8a, 8b). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to ANDREW YANG whose telephone number is (571)272-3472. The examiner can normally be reached 9:00 - 9:00 M-F. 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, Kevin Truong can be reached at 571-272-4705. 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. /ANDREW YANG/Primary Examiner, Art Unit 3775
Read full office action

Prosecution Timeline

Aug 26, 2024
Application Filed
Jan 22, 2026
Non-Final Rejection — §102 (current)

Precedent Cases

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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
84%
Grant Probability
94%
With Interview (+10.4%)
2y 10m
Median Time to Grant
Low
PTA Risk
Based on 1284 resolved cases by this examiner. Grant probability derived from career allow rate.

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