Prosecution Insights
Last updated: April 19, 2026
Application No. 18/502,593

INTERSPINOUS PROCESS FIXATION DEVICE

Non-Final OA §102
Filed
Nov 06, 2023
Examiner
NEGRELLIRODRIGUEZ, CHRISTINA
Art Unit
3773
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
BFM Holdings, LLC
OA Round
1 (Non-Final)
89%
Grant Probability
Favorable
1-2
OA Rounds
2y 10m
To Grant
99%
With Interview

Examiner Intelligence

Grants 89% — above average
89%
Career Allow Rate
909 granted / 1024 resolved
+18.8% vs TC avg
Moderate +11% lift
Without
With
+10.7%
Interview Lift
resolved cases with interview
Typical timeline
2y 10m
Avg Prosecution
30 currently pending
Career history
1054
Total Applications
across all art units

Statute-Specific Performance

§101
1.0%
-39.0% vs TC avg
§103
18.1%
-21.9% vs TC avg
§102
59.2%
+19.2% vs TC avg
§112
16.2%
-23.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1024 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 . Election/Restrictions Restriction to one of the following inventions is required under 35 U.S.C. 121: I. Claims 1-10, drawn to a spinous process fixation device, classified in A61B17/7062. II. Claims 11-16, drawn to a surgical screw, classified in A61B17/863. II. Claims 17-20, drawn to a spinous process fixation device, classified in A61B17/7028 The inventions are independent or distinct, each from the other because: Inventions I and II are unrelated, Inventions II and III are unrelated, and Inventions 1 and III are unrelated . Inventions are unrelated if it can be shown that they are not disclosed as capable of use together and they have different designs, modes of operation, and effects (MPEP § 802.01 and § 806.06). In the instant case, the different inventions have different designs and modes of operations. Restriction for examination purposes as indicated is proper because all the inventions listed in this action are independent or distinct for the reasons given above and there would be a serious search and/or examination burden if restriction were not required because one or more of the following reasons apply: the inventions require separate fields of search (classification and/or text search queries). Applicant is advised that the reply to this requirement to be complete must include (i) an election of an invention to be examined even though the requirement may be traversed (37 CFR 1.143) and (ii) identification of the claims encompassing the elected invention. The election of an invention may be made with or without traverse. To reserve a right to petition, the election must be made with traverse. If the reply does not distinctly and specifically point out supposed errors in the restriction requirement, the election shall be treated as an election without traverse. Traversal must be presented at the time of election in order to be considered timely. Failure to timely traverse the requirement will result in the loss of right to petition under 37 CFR 1.144. If claims are added after the election, applicant must indicate which of these claims are readable upon the elected invention. Should applicant traverse on the ground that the inventions are not patentably distinct, applicant should submit evidence or identify such evidence now of record showing the inventions to be obvious variants or clearly admit on the record that this is the case. In either instance, if the examiner finds one of the inventions unpatentable over the prior art, the evidence or admission may be used in a rejection under 35 U.S.C. 103 or pre-AIA 35 U.S.C. 103(a) of the other invention. Applicant is reminded that upon the cancelation of claims to a non-elected invention, the inventorship must be corrected in compliance with 37 CFR 1.48(a) if one or more of the currently named inventors is no longer an inventor of at least one claim remaining in the application. A request to correct inventorship under 37 CFR 1.48(a) must be accompanied by an application data sheet in accordance with 37 CFR 1.76 that identifies each inventor by his or her legal name and by the processing fee required under 37 CFR 1.17(i). During a telephone conversation with Attorney of Record S. Dill on 08/22/2025, a provisional election was made without traverse to prosecute the invention of claims 17-20. Affirmation of this election must be made by applicant in replying to this Office action. Claims 1-16 are withdrawn from further consideration by the examiner, 37 CFR 1.142(b), as being drawn to a non-elected invention. 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. Claims 17-20 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Peterson et al. (U.S. Publication No.2018/0092677 A1; hereinafter “Peterson”). Regarding claim 17, Peterson discloses a surgical screw (see screw 7200 in Figure 72) comprising: at least one helical thread (7201) arranged in one of a right-hand helix or a left-hand helix, said at least one helical thread having a first thickness partially defined by an inner diameter (see annotated Figure 79 below); and at least one inner framework helix (7202) arranged in the other of the right-hand helix or the left- hand helix (para.0410), said at least one inner framework helix having a second thickness partially defined by an outer diameter (see annotated Figure 79 below), wherein the inner diameter of the at least one helical thread is smaller than the outer diameter of the at least one inner framework helix thereby creating an overlap of the first thickness and the second thickness (see annotated Figure 79 below). Regarding claim 18, Peterson further discloses wherein the overlap is 25-75% of the first thickness of the at least one helical thread (see annotated Figure 79 below). Regarding claims 19 and 20, Peterson further discloses wherein a surface of the at least one inner framework helix is rough and wherein a surface of the at least one helical thread is smooth (para.00268). PNG media_image1.png 377 912 media_image1.png Greyscale Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to Christina Negrelli whose telephone number is 571-270-7389. The examiner can normally be reached on Monday-Friday, between 8:00am to 4:00pm. If attempts to reach the examiner by telephone are unsuccessful, please contact the examiner’s supervisor, Eduardo 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. /CHRISTINA NEGRELLI/ Examiner, Art Unit 3773 /JULIANNA N HARVEY/Primary Examiner, Art Unit 3773
Read full office action

Prosecution Timeline

Nov 06, 2023
Application Filed
Aug 22, 2025
Non-Final Rejection — §102 (current)

Precedent Cases

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SPINAL IMPLANT SYSTEM AND METHOD
2y 5m to grant Granted Mar 17, 2026
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
89%
Grant Probability
99%
With Interview (+10.7%)
2y 10m
Median Time to Grant
Low
PTA Risk
Based on 1024 resolved cases by this examiner. Grant probability derived from career allow rate.

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