Prosecution Insights
Last updated: August 17, 2026
Application No. 17/799,147

Systems and Methods to Optimize the Bone Implant Interface

Final Rejection §103
Filed
Aug 11, 2022
Priority
Feb 12, 2020 — provisional 62/975,458 +1 more
Examiner
DUKERT, BRIAN AINSLEY
Art Unit
3774
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Mayo Foundation for Medical Education and Research
OA Round
2 (Final)
82%
Grant Probability
Favorable
3-4
OA Rounds
0m
Est. Remaining
93%
With Interview

Examiner Intelligence

Grants 82% — above average
82%
Career Allowance Rate
668 granted / 813 resolved
+12.2% vs TC avg
Moderate +11% lift
Without
With
+11.1%
Interview Lift
resolved cases with interview
Typical timeline
2y 7m
Avg Prosecution
29 currently pending
Career history
839
Total Applications
across all art units

Statute-Specific Performance

§101
2.2%
-37.8% vs TC avg
§103
34.8%
-5.2% vs TC avg
§102
28.1%
-11.9% vs TC avg
§112
24.2%
-15.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 813 resolved cases

Office Action

§103
DETAILED ACTION The following is a final office action is response to communications received on 04/22/2026. Claims 1-13, 15, 18-20, 27, 44, 50 & 51 are currently pending and addressed below. Claims 1-11 & 27 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 claims 12 & 20 have been considered but are moot because the arguments do not apply to any of the references being used in the current rejection. The Examiner notes the change in prior art was necessitated by the Applicant’s amendments. Claim Rejections - 35 USC § 103 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. 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. Claim(s) 12, 13, 15, 18, 19, 20, 44, 50 & 51 is/are rejected under 35 U.S.C. 103 as being unpatentable over Scrafton et al. (US 8,642,112) in view of Parisi et al. (US 10,441,429). PNG media_image1.png 614 551 media_image1.png Greyscale Regarding Claim 12, Scrafton discloses the invention substantially as claimed. Scrafton teaches a device for repairing a part of a bone in a subject (Fig 1), the device comprising: a first section (26) having a first material property (Col 3: lines 54-67); a second section (30) having a second material property (Col 5: lines 48-60); the first section being connected (shown) to the second section at a portion of a cross-sectional plane (any cross-section) of the device, wherein the first section is dimensioned to form a first bone-implant interface (16) with the bone on a first side of the cross-sectional plane, and wherein the second section is dimensioned to form a second bone-implant (14) interface with the bone on a second side of the cross-sectional plane. However, Scrafton does not specifically disclose wherein the implant is an asymmetric implant. PNG media_image2.png 372 506 media_image2.png Greyscale Parisi teaches an asymmetrical femoral implant (20) in the same field of endeavor. Said asymmetric femoral implant designed to replace the native articular surfaces of the knee (Col 1: lines 25-28). It would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to construct the device of Scrafton with the asymmetric design, as taught by Parisi, in order to best replicate and replace the articular surfaces of the native knee. Regarding Claim 13, the combination teaches wherein the first material property (Col 3: lines 54-67) includes at least one of elasticity, porosity, thickness, or shape (all inherent properties), and wherein the second material property (Col 5: lines 48-60) includes at least one of elasticity, porosity, thickness, or shape (all inherent properties). Regarding Claim 15, the combination teaches wherein the first section (26) includes a first surface coating treatment (Col 3: lines 54-67) of the device creating the first material property and/or the second section (30) includes a second surface coating treatment (Col 5: lines 48-60) of the device creating the second material property, and wherein at least one of the first surface coating treatment and the second surface coating treatment corresponds to a location of uneven stress distribution (as the coating is applied to the entire surface), and wherein the first surface coating treatment and the second surface coating treatment are asymmetric on the surface of the device (as taught by Parisi), and wherein the location of uneven stress distribution of the bone corresponds to a location of reduced bone thickness (at the resection surface(s)). Regarding Claim 18, the combination teaches wherein the bone is a humerus and a joint that includes the bone is a shoulder (Col 2: lines 53-59). Regarding Claim 19, the combination teaches wherein the first section and the second section are configured to reduce stress shielding (as the coating covers the entire surface). Regarding Claim 20, Scrafton discloses the invention substantially as claimed. Scrafton teaches a device for repairing a part of a bone in a subject (Fig 1), the device comprising: a first section (26) having a first material property; a second section (30) having a second material property, the first section being connected (shown) to the second section at a portion of a cross-sectional plane of the device; and wherein the first section (26) includes a first surface coating treatment of the device creating the first material property and the second section includes a second surface coating treatment of the device creating the second material property configured to optimize the bone-implant interface. However, Scrafton does not specifically disclose wherein the implant is an asymmetric implant. Parisi teaches an asymmetrical femoral implant (20) in the same field of endeavor. Said asymmetric femoral implant designed to replace the native articular surfaces of the knee (Col 1: lines 25-28). It would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to construct the device of Scrafton with the asymmetric design, as taught by Parisi, in order to best replicate and replace the articular surfaces of the native knee. Regarding Claim 44, the combination teaches wherein: at least one of the first surface coating treatment or the second surface coating treatment is fully capable of reducing stress shielding to a region of the bone (as the coating covers the entire surface). Regarding Claim 50 & 51, the combination teaches wherein the asymmetric implant is asymmetrical with respect to the cross-sectional plane of the device such that the asymmetric implant lacks bilateral symmetry across the cross-sectional plane (Parisi Fig 3A) of the device and such that no orientation of the cross-sectional plane of the device results in bilateral symmetry (Parisi Fig 3A). Conclusion 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 BRIAN AINSLEY DUKERT whose telephone number is (571)270-3258. The examiner can normally be reached Mon-Fri 6am-4pm. 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, Melanie Tyson can be reached at (571)272-9062. 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. /BRIAN A DUKERT/Primary Examiner, Art Unit 3774
Read full office action

Prosecution Timeline

Aug 11, 2022
Application Filed
Aug 11, 2022
Response after Non-Final Action
Dec 13, 2025
Non-Final Rejection (signed) — §103
Jan 26, 2026
Non-Final Rejection mailed — §103
Apr 22, 2026
Response Filed
Jul 02, 2026
Final Rejection mailed — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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HUMERAL HEAD IMPLANT SYSTEM
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Patent 12685636
EXPANDABLE SHEATH FOR INTRODUCING AN ENDOVASCULAR DELIVERY DEVICE INTO A BODY
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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
82%
Grant Probability
93%
With Interview (+11.1%)
2y 7m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 813 resolved cases by this examiner. Grant probability derived from career allowance rate.

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