Prosecution Insights
Last updated: April 19, 2026
Application No. 18/547,068

ORTHOPEDIC IMPLANT FOR BONE REALIGNMENT

Non-Final OA §102§112
Filed
Aug 18, 2023
Examiner
CHANG, OLIVIA C
Art Unit
3775
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Biomedtrix LLC
OA Round
1 (Non-Final)
84%
Grant Probability
Favorable
1-2
OA Rounds
3y 0m
To Grant
98%
With Interview

Examiner Intelligence

Grants 84% — above average
84%
Career Allow Rate
612 granted / 726 resolved
+14.3% vs TC avg
Moderate +13% lift
Without
With
+13.3%
Interview Lift
resolved cases with interview
Typical timeline
3y 0m
Avg Prosecution
23 currently pending
Career history
749
Total Applications
across all art units

Statute-Specific Performance

§101
2.1%
-37.9% vs TC avg
§103
31.8%
-8.2% vs TC avg
§102
37.0%
-3.0% vs TC avg
§112
25.4%
-14.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 726 resolved cases

Office Action

§102 §112
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 . Election/Restrictions Applicant’s election without traverse of Group I in the reply filed on February 25, 2026 is acknowledged. Claims 13-20 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected invention, there being no allowable generic or linking claim. As such, claims 1-12 are pending in the instant application. 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. Claim 12 is 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 12 recites “wherein a second surface of the spacer comprises one or more cutouts.” However, claim 1 is silent regarding “a first surface”. It is unclear to which surface “a second surface” refers. Examiner withdrew this claim from examination. 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) 1-3, 8-11 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Zhang et al. (US 2008/0317812), hereinafter “Zhang”. Regarding claim 1, Zhang discloses an orthopedic spacer assembly (10), comprising: a bone plate (12) including a first end portion and a second end portion, the second end portion defining a plurality of anchor openings (22); and a spacer (16) having a c-shaped body (at 32, FIG. 3) and comprising a central bore (28) extending through a thickness of the spacer, the spacer configured to be disposed between the bone plate and a subject's bone such that the central bore of the spacer aligns with an anchor opening of the plurality of anchor openings (FIGS. 1-2). Regarding claim 2, Zhang discloses the orthopedic spacer assembly of claim 1, wherein the spacer comprises a first surface and a second surface separated by a sidewall (see Figure A below), and wherein the first surface has a convex shape (see Figure A below). Regarding claim 3, Zhang discloses the orthopedic spacer assembly of claim 2, wherein the side wall is circular (see Figure A below). PNG media_image1.png 161 402 media_image1.png Greyscale Figure A: Spacer of Zhang. Regarding claim 8, Zhang discloses the orthopedic spacer assembly of claim 1, wherein the spacer comprises an opening (at 26, portion absent protrusion 32) extending from the central bore to a radially outer edge of the spacer. Regarding claim 9, Zhang discloses the orthopedic spacer assembly of claim 1, wherein a thickness of the spacer is between 1 mm and 10 mm. Regarding claim 10, Zhang discloses the orthopedic spacer assembly of claim 1, wherein the spacer is a first spacer and the assembly further comprises a second spacer (disposed in other hole 22) configured to be disposed between the bone plate and the subject's bone such that the central bore of the second spacer aligns with another of the anchor openings of the plurality of anchor openings (FIG. 1). Regarding claim 11, Zhang discloses the orthopedic spacer assembly of claim 1, wherein the spacer is configured to be disposed at least partially around a fastener extending through the anchor opening (FIG. 2). Allowable Subject Matter Claims 4-7 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. The following is a statement of reasons for the indication of allowable subject matter: Zhang discloses an orthopedic spacer assembly (10), comprising: a bone plate (12) including a first end portion and a second end portion, the second end portion defining a plurality of anchor openings (22); and a spacer (16) having a c-shaped body (at 32, FIG. 3) and comprising a central bore (28) extending through a thickness of the spacer, the spacer configured to be disposed between the bone plate and a subject's bone such that the central bore of the spacer aligns with an anchor opening of the plurality of anchor openings (FIGS. 1-2), wherein the spacer comprises a first surface and a second surface separated by a sidewall (see Figure A above), and wherein the first surface has a convex shape (see Figure A above). However, the prior art, alone or in combination, fails to teach wherein the central bore tapers from a first opening having a first diameter to a second opening having a second diameter greater than the first diameter, or wherein the sidewall comprises a slot extending radially inwardly toward the central bore, wherein the slot is configured to engage a positioning tool configured to position the spacer between the bone plate and a bone portion, or wherein the first surface of the spacer is configured to be positioned adjacent the bone plate and wherein the second surface is configured to be positioned against a bone portion. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to OLIVIA C CHANG whose telephone number is (571) 270-5017. The examiner can normally be reached Monday-Friday, 7:30AM-5:00PM. If attempts to reach the examiner by telephone are unsuccessful, please contact the examiner’s supervisor, KEVIN TRUONG, 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 an application may be obtained from the Patent Application Information Retrieval (PAIR) system. Status information for published applications may be obtained from either Private PAIR or Public PAIR. Status information for unpublished applications is available through Private PAIR only. For more information about the PAIR system, seehttp://pair-direct.uspto.gov. Should you have questions on access to the Private PAIR system, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative or access to the automated information system, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /OLIVIA C CHANG/Primary Examiner, Art Unit 3775
Read full office action

Prosecution Timeline

Aug 18, 2023
Application Filed
Mar 17, 2026
Non-Final Rejection — §102, §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12582419
TIBIAL SUPRAPATELLAR ENTRY PORTAL SYSTEM
2y 5m to grant Granted Mar 24, 2026
Patent 12558135
OSSEOUS ANCHORING IMPLANT WITH CORTICAL STABILIZATION
2y 5m to grant Granted Feb 24, 2026
Patent 12514623
ORTHOPEDIC PLATE FOR TREATMENT OF TIBIAL FRACTURES AND RELATED METHODS
2y 5m to grant Granted Jan 06, 2026
Patent 12514624
BONE FIXATION DEVICE AND METHOD OF USE
2y 5m to grant Granted Jan 06, 2026
Patent 12491014
OSTEOSYNTHESIS PLATE SUITABLE AS A REPLACEMENT OF A SYNARTHROSIS
2y 5m to grant Granted Dec 09, 2025
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
98%
With Interview (+13.3%)
3y 0m
Median Time to Grant
Low
PTA Risk
Based on 726 resolved cases by this examiner. Grant probability derived from career allow rate.

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