Prosecution Insights
Last updated: April 19, 2026
Application No. 17/881,573

FIXATED INTERVERTEBRAL MESH IMPLANT AND METHOD

Non-Final OA §102
Filed
Aug 04, 2022
Examiner
HAMMOND, ELLEN CHRISTINA
Art Unit
3773
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Spineology Inc.
OA Round
2 (Non-Final)
78%
Grant Probability
Favorable
2-3
OA Rounds
3y 2m
To Grant
90%
With Interview

Examiner Intelligence

Grants 78% — above average
78%
Career Allow Rate
799 granted / 1025 resolved
+8.0% vs TC avg
Moderate +12% lift
Without
With
+12.1%
Interview Lift
resolved cases with interview
Typical timeline
3y 2m
Avg Prosecution
33 currently pending
Career history
1058
Total Applications
across all art units

Statute-Specific Performance

§101
3.1%
-36.9% vs TC avg
§103
35.6%
-4.4% vs TC avg
§102
33.8%
-6.2% vs TC avg
§112
17.5%
-22.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1025 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 . Continued Examination Under 37 CFR 1.114 A request for continued examination under 37 CFR 1.114, including the fee set forth in 37 CFR 1.17(e), was filed in this application after allowance or after an Office action under Ex Parte Quayle, 25 USPQ 74, 453 O.G. 213 (Comm'r Pat. 1935). Since this application is eligible for continued examination under 37 CFR 1.114, and the fee set forth in 37 CFR 1.17(e) has been timely paid, prosecution in this application has been reopened pursuant to 37 CFR 1.114. Applicant's submission filed on 01/08/2026 has been entered. Claims 2 and 4-18 are pending. Information Disclosure Statement The information disclosure statement (IDS) submitted on 01/08/2026 is in compliance with the provisions of 37 CFR 1.97. Accordingly, the information disclosure statement is being considered by the examiner. Claim Objections Claims 12-14 are objected to because of the following informalities: In claim 12, in line 1, change “an” to –a--; in line 2, delete “distal” and “of the first anchor arm”; in line 3, change “an” to –a—and delete “distal”; in line 4 delete “of the second anchor arm.” In claim 13, line 1, delete “of the first anchor arm”; and in line 2 delete “of the second anchor arm.” In claim 14, line 1, delete “of the first anchor arm”; in lines 2-3, delete “of the second anchor arm.” Appropriate correction is required. Claim Rejections - 35 USC § 102 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 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) 2, 4, 7-8, 10-12 and 15-17 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Gleason (U.S. 11,439,515 B2) as cited in the IDS filed 01/08/2026. It is noted that Michelson (U.S. 2001/0010002 A1) is referenced to support the position that saw teeth on the outer surface of a fusion endplate penetrate the adjacent vertebral bodies. Concerning claim 2, Gleason discloses a method of anchoring an expandable mesh implant to a patient's anatomy, comprising: providing an anchor (see below) having an elongated body, a first anchor arm (see below), and a second anchor arm (see below), wherein the elongated body extends lengthwise between a distal end and a proximal end, wherein the elongated body includes an interior aperture (see below) and a lateral aperture (see below), and wherein the interior aperture extends lengthwise from the proximal end, and wherein the lateral aperture is disposed in the elongated body at a position between the distal end and the proximal end of the elongated body and the lateral aperture is in communication with the interior aperture; securing the expandable mesh implant to the elongated body of the anchor while the expandable mesh implant is in an unexpanded state (see col. 2, lines 42-60); placing the expandable mesh implant secured to the elongated body in the unexpanded state in an intervertebral space located between a superior vertebrae and an inferior vertebrae (see col. 2, lines 42-60); securing the first anchor arm (see below) to the elongated body at a first end of the first anchor arm while extending an opposing second end (see below) of the first anchor arm at least partially into the superior vertebrae (see col. 5, lines 13-18); and securing the second anchor arm (see below) to the elongated body at a first end of the second anchor arm while extending an opposing second end (see below) of the second anchor arm at least partially into the inferior vertebrae. [AltContent: connector][AltContent: textbox (Head Portion )][AltContent: arrow][AltContent: textbox (Lateral Aperture)][AltContent: arrow][AltContent: textbox (Interior Aperture)][AltContent: arrow][AltContent: textbox (Anchor)] PNG media_image1.png 295 505 media_image1.png Greyscale [AltContent: connector][AltContent: textbox (Opposing Second End of 2nd Anchor Arm)][AltContent: connector][AltContent: textbox (1st End of 2nd Anchor Arm)][AltContent: connector][AltContent: textbox (Opposing Second End of 1st Anchor Arm)][AltContent: connector][AltContent: textbox (1st End of 1st Anchor Arm)][AltContent: arrow][AltContent: arrow][AltContent: textbox (2nd Anchor Arm)][AltContent: textbox (1st Anchor Arm)] PNG media_image2.png 522 590 media_image2.png Greyscale Regarding the recitation that the second ends of the 1st and 2nd anchor arms are extended at least partially into the vertebrae, it is noted that the outer surfaces of the 1 and 2nd anchor arms can be saw tooth – as shown in Figs. 18 and 19 below (see col. 5, lines 13-18). Upon expansion of the anchor arms the second ends are extended at least partially into the vertebrae due to the sharp saw teeth engaging and breaking through bone surface. To further illustrate the extension as described, Applicant’s attention is directed below to Figs. 30 and 32 of Michelson. Michelson discloses a spinal implant having saw teeth on the outer surfaces thereof. The saw teeth break through the bone and extend at least partially into the vertebrae during implantation. It is noted that Applicant is not claiming a how much, or at what angle the extension of the arms into the vertebrae occurs. Applicant merely claims “at least partially.” [AltContent: arrow][AltContent: arrow][AltContent: textbox (At least partially into the vertebra)] PNG media_image3.png 558 441 media_image3.png Greyscale [AltContent: arrow][AltContent: textbox (Saw Teeth of Gleason)][AltContent: arrow][AltContent: textbox (Saw Teeth of Michelson)] PNG media_image4.png 299 281 media_image4.png Greyscale PNG media_image5.png 723 521 media_image5.png Greyscale Concerning claim 4, wherein the first end of the first anchor arm is secured to the elongated body adjacent to the proximal end of the elongated body, and the first end of the second anchor arm is secured to the elongated body adjacent to the proximal end of the elongated body (see Fig. 13 above). Concerning claim 7, wherein the first anchor arm and the second anchor arm are disposed on opposite sides of the elongated body (see Fig. 14). Concerning claim 8, wherein the elongated body includes a head portion (see Fig. 3, near element 114) contiguous with the proximal end, and the first end of the first anchor arm is secured to the head portion (see above), and the first end of the second anchor arm is secured to the head portion (see above). Concerning claim 10, wherein the first anchor arm has a curved configuration between the first end of the first anchor arm and the second end of the first anchor arm (see Fig. 6 below), and the second anchor arm has a curved configuration between the first end of the second anchor arm and the second end of the second anchor arm (see Fig. 6 below). [AltContent: arrow][AltContent: textbox (Curved Configuration between 1st and 2nd Ends)][AltContent: arrow] PNG media_image6.png 374 454 media_image6.png Greyscale Regarding claim 11, Gleason discloses a method of anchoring an expandable mesh implant to a patient's anatomy, comprising: providing an anchor (see Fig. 3 above) having an elongated body, a first anchor arm (see Fig. 14 above), and a second anchor arm (see Fig. 14 above), wherein the elongated body extends lengthwise between a distal end and a proximal end, wherein the elongated body includes an interior aperture (see Fig. 3 above) and a lateral aperture (see Fig. 3 above), and wherein the interior aperture extends lengthwise from the proximal end, and wherein the lateral aperture is disposed in the elongated body at a position between the distal end and the proximal end of the elongated body and the lateral aperture is in communication with the interior aperture; removing the first anchor arm and the second anchor arm from the elongated body (see Fig. 3 above); securing the expandable mesh implant to the elongated body of the anchor while the expandable mesh implant is in an unexpanded state (see col. 5, lines 30-34); placing the expandable mesh implant secured to the elongated body in the unexpanded state in an intervertebral space located between a superior vertebrae and an inferior vertebrae (see col. 5, lines 35-40); attaching the first anchor arm and the second anchor arm to the elongated body (see Fig. 13); securing the first anchor arm to the superior vertebrae and securing the second anchor arm to the inferior vertebrae (occurs with expansion as the teeth break into the adjacent vertebral bone); and filling the expandable mesh implant with a filler material (see col. 5, lines 39-40). It is noted that the claim language does not explicitly or implicitly require a specific sequence for the steps of removing the first anchor arm and the second anchor arm from the elongated body, or attaching the first anchor arm and the second anchor arm to the elongated body. Concerning claim 12, wherein the first anchor arm (FAA) extends between a FAA first end and a FAA second end (see above), and the FAA first end is secured to the elongated body adjacent to the proximal end of the elongated body (see above); and wherein the second anchor arm (SAA) extends between a SAA first end and a SAA second end, and the SAA first end is secured to the elongated body adjacent to the proximal end of the elongated body (see above). Concerning claim 15, wherein the first anchor arm has a curved configuration between the FAA first end and the FAA second end, and the second anchor arm has a curved configuration between the SAA first end and the SAA second end (see above). Concerning claim 16, wherein the first anchor arm and the second anchor arm are disposed on opposite sides of the elongated body (see above). Concerning claim 17, wherein the elongated body includes a head portion contiguous with the proximal end, and the first anchor arm is secured to the head portion, and the second anchor arm is secured to the head portion (see above). Allowable Subject Matter Claims 5, 6, 9, 13-14 and 18 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 Any inquiry concerning this communication or earlier communications from the examiner should be directed to ELLEN HAMMOND whose telephone number is (571)270-3819. The examiner can normally be reached Monday-Friday 8 - 4 PM . If attempts to reach the examiner by telephone are unsuccessful, please contact the examiner’s supervisor, Eduardo C. Robert, at 571 272-4719. 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, see http://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. /ELLEN C HAMMOND/Primary Examiner, Art Unit 3773
Read full office action

Prosecution Timeline

Aug 04, 2022
Application Filed
Feb 26, 2025
Non-Final Rejection — §102
Sep 03, 2025
Response Filed
Jan 08, 2026
Request for Continued Examination
Jan 26, 2026
Response after Non-Final Action
Jan 29, 2026
Non-Final Rejection — §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12599409
HINGEAPPARATUS FOR EXTERNAL BONE FIXATOR
2y 5m to grant Granted Apr 14, 2026
Patent 12599410
MULTI-CLAMP APPARATUS FOR EXTERNAL BONE FIXATOR
2y 5m to grant Granted Apr 14, 2026
Patent 12582393
RETRACTOR FOR SPINAL SURGERY
2y 5m to grant Granted Mar 24, 2026
Patent 12575940
INTERVERTEBRAL IMPLANTS, INSTRUMENTS, AND METHODS
2y 5m to grant Granted Mar 17, 2026
Patent 12569282
Tissue Retraction And Vertebral Displacement Devices, Systems, And Methods For Posterior Spinal Fusion
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

2-3
Expected OA Rounds
78%
Grant Probability
90%
With Interview (+12.1%)
3y 2m
Median Time to Grant
Moderate
PTA Risk
Based on 1025 resolved cases by this examiner. Grant probability derived from career allow rate.

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