Prosecution Insights
Last updated: April 19, 2026
Application No. 16/850,442

METHODS OF FORMING IMPLANTS WITH POROUS SURFACES USING HEAT BONDING

Non-Final OA §102§103
Filed
Apr 16, 2020
Examiner
BAHENA, CHRISTIE L.
Art Unit
3774
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Smed-Ta/Td LLC
OA Round
7 (Non-Final)
67%
Grant Probability
Favorable
7-8
OA Rounds
3y 0m
To Grant
91%
With Interview

Examiner Intelligence

Grants 67% — above average
67%
Career Allow Rate
285 granted / 424 resolved
-2.8% vs TC avg
Strong +24% interview lift
Without
With
+23.6%
Interview Lift
resolved cases with interview
Typical timeline
3y 0m
Avg Prosecution
37 currently pending
Career history
461
Total Applications
across all art units

Statute-Specific Performance

§101
6.2%
-33.8% vs TC avg
§103
44.3%
+4.3% vs TC avg
§102
15.2%
-24.8% vs TC avg
§112
27.7%
-12.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 424 resolved cases

Office Action

§102 §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 . Reopening In view of the appeal brief filed on 1/20/2026, PROSECUTION IS HEREBY REOPENED. New grounds of rejection are set forth above. To avoid abandonment of the application, appellant must exercise one of the following two options: (1) file a reply under 37 CFR 1.111 (if this Office action is non-final) or a reply under 37 CFR 1.113 (if this Office action is final); or, (2) initiate a new appeal by filing a notice of appeal under 37 CFR 41.31 followed by an appeal brief under 37 CFR 41.37. The previously paid notice of appeal fee and appeal brief fee can be applied to the new appeal. If, however, the appeal fees set forth in 37 CFR 41.20 have been increased since they were previously paid, then appellant must pay the difference between the increased fees and the amount previously paid. A Supervisory Patent Examiner (SPE) has approved of reopening prosecution by signing below: /THOMAS C BARRETT/ SPE, Art Unit 3799 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) 10-11, 14-15 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Wang (EP2774580A1). In regard to claim 10, Wang discloses an orthopaedic implant, comprising: an implant body 502 comprising a surface having an opening formed therein (opening fits 504, 506; fig 20); a bonded insert 506 comprising a bare portion 516 disposed within the opening and a bonded portion 504 coupled to the bare portion (516 is bare below 504; since 504 is a separate layer it is bonded: pg 8, Col 14, lines 5-10: molded onto, selective laser melting techniques), the bare portion (516) being diffusion bonded to the implant body 502 (diffusion bonded is a product by process limitation, patentable only based on the end structure of a bonded insert to the implant body which has been met; Col 14 lines 4-10: selective laser sintering), wherein the bare portion 516 comprises at least one flange (see annotated figure, the ends are flanges), the opening defining an opening width and the at least one flange (see annotated figure) defining a flange width that is greater than the opening width (the flange width is larger than at least a portion of the opening towards the proximal end); and a porous ingrowth material 504 diffusion bonded (product by process; Col 14, lines 4-10: selective laser sintering) to the bonded portion 516 and disposed between the bonded portion and the opening (fig 20), wherein the bonded portion of the bonded insert 516 comprises a metal. [0035: fully dense intermediate second metal layer] Diffusion bonded is a product by process limitation, patentable only based on the end structure of a bonded insert to the implant body which has been met. In regard to claim 11, Wang discloses the claim limitations as discussed in the rejection of claim 10, and further teaches the porous ingrowth material 504 covers the opening (covers at least a portion of the opening as shown in figure 20). In regard to claim 14, Wang discloses the claim limitations as discussed in the rejection of claim 10, and further teaches the opening is defined by a plurality (defined as two or more) of walls extending from a bottom surface. (see figure 20, side walls around external flange, top wall) In regard to claim 15, Wang discloses the claim limitations as discussed in the rejection of claim 14, and further teaches the walls perpendicularly extend from the bottom surface. Since as shown in figure 21 the flange fits into the walls of implant 502 and the two pieces fit together flushly as shown in figure 20, at least a small portion of the walls must perpendicularly extend from the bottom surface. PNG media_image1.png 588 754 media_image1.png Greyscale 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. Claim(s) 17 is/are rejected under 35 U.S.C. 103 as being unpatentable over Wang (EP2774580A1). In regard to claim 17, Wang meets the claim limitations as discussed in the rejection of claim 10, and teaches a plurality (defined as two or more) of bonded inserts 506 (figures 19-20) but does not teach the implant body comprises a plurality of openings comprising a plurality of bonded inserts. The claim is currently written in a manner that does not link the opening or bonded insert of claim 1 to those in claim 17. If the opening and bonded insert of claim 1 are one of the plurality of openings and bonded inserts, this should be made clear in the claims. The embodiment of figures 11-12 of Wang teach the implant body comprises a plurality of openings (see openings through which inserts 332 fit in figures 11-12), the orthopaedic implant comprising a plurality of bonded inserts 332a each having a respective bare portion 332 disposed in a respective one of the openings. (see figures 11-12) The central bare portion is within the opening. If the applicant intends the bare portion to be externally against the opening, the claim should be amended accordingly. It would have been obvious to one of ordinary skill in the art at the time the invention was filed to make the inserts of the embodiment of figures 19-20 modularly connected as taught by the embodiments of figures 14-16, 12, because this allows the implant to be modified for different shapes of spikes to be used depending on the individual needs of the user and allows multiple different shapes to be used in one implant if required. Response to Arguments The applicant’s arguments regarding the combination of references have been found convincing and the application has been reopened with new grounds of rejection as noted above. Accordingly, all arguments are moot in view of new grounds of rejection. Conclusion Barnett (WO2008/048821A2) is also relevant prior art. Any inquiry concerning this communication or earlier communications from the examiner should be directed to CHRISTIE BAHENA whose telephone number is (571)270-3206. The examiner can normally be reached M-F 9-3. 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, Thomas Barrett can be reached at 571-272-4746. 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. /CHRISTIE BAHENA/Primary Examiner, Art Unit 3774
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Prosecution Timeline

Apr 16, 2020
Application Filed
Jul 01, 2023
Non-Final Rejection — §102, §103
Oct 09, 2023
Response Filed
Nov 04, 2023
Final Rejection — §102, §103
Feb 09, 2024
Response after Non-Final Action
May 23, 2024
Non-Final Rejection — §102, §103
Aug 28, 2024
Response Filed
Sep 18, 2024
Final Rejection — §102, §103
Nov 18, 2024
Response after Non-Final Action
Dec 18, 2024
Request for Continued Examination
Dec 20, 2024
Response after Non-Final Action
Mar 05, 2025
Non-Final Rejection — §102, §103
Jun 10, 2025
Response Filed
Aug 15, 2025
Final Rejection — §102, §103
Nov 19, 2025
Notice of Allowance
Jan 20, 2026
Response after Non-Final Action
Jan 31, 2026
Response after Non-Final Action
Apr 01, 2026
Non-Final Rejection — §102, §103 (current)

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

7-8
Expected OA Rounds
67%
Grant Probability
91%
With Interview (+23.6%)
3y 0m
Median Time to Grant
High
PTA Risk
Based on 424 resolved cases by this examiner. Grant probability derived from career allow rate.

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