Prosecution Insights
Last updated: July 17, 2026
Application No. 17/720,949

PUNCH ASSEMBLY TO FACILITATE HAIR FOLLICLE REMOVAL

Non-Final OA §103
Filed
Apr 14, 2022
Examiner
JAFFRI, ZEHRA
Art Unit
3771
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Cole Isolation Technique LLC
OA Round
5 (Non-Final)
61%
Grant Probability
Moderate
5-6
OA Rounds
0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 61% of resolved cases
61%
Career Allowance Rate
49 granted / 80 resolved
-8.7% vs TC avg
Strong +46% interview lift
Without
With
+45.7%
Interview Lift
resolved cases with interview
Typical timeline
3y 5m
Avg Prosecution
35 currently pending
Career history
131
Total Applications
across all art units

Statute-Specific Performance

§103
83.2%
+43.2% vs TC avg
§102
7.3%
-32.7% vs TC avg
§112
3.5%
-36.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 80 resolved cases

Office Action

§103
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 final rejection. 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and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114. Applicant's submission filed on 5/6/2026 has been entered. Response to Amendment In light of Applicant’s amendment, claim(s) 1, 6-7 and 21 is/are amended. Claims 1-7 and 21-32 are now pending examination. The rejection(s) under 35 U.S.C. 112(a) to claim(s) 1 is/are withdrawn in light of Applicant’s amendment. Response to Arguments Applicant’s arguments, filed 5/6/2026, with respect to the rejection(s) of claim(s) 1 under U.S.C 102 have been fully considered and are persuasive. Examiner agrees the notches of Devroye cited as “additional cutting edges” are not explicitly disclosed as cutting edges. Therefore, the rejection has been withdrawn. However, upon further consideration, a new ground(s) of rejection is made in view of Devroye in view of Grace. 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. The factual inquiries for establishing a background for determining obviousness under 35 U.S.C. 103 are summarized as follows: 1. Determining the scope and contents of the prior art. 2. Ascertaining the differences between the prior art and the claims at issue. 3. Resolving the level of ordinary skill in the pertinent art. 4. Considering objective evidence present in the application indicating obviousness or nonobviousness. This application currently names joint inventors. In considering patentability of the claims the examiner presumes that the subject matter of the various claims was commonly owned as of the effective filing date of the claimed invention(s) absent any evidence to the contrary. Applicant is advised of the obligation under 37 CFR 1.56 to point out the inventor and effective filing dates of each claim that was not commonly owned as of the effective filing date of the later invention in order for the examiner to consider the applicability of 35 U.S.C. 102(b)(2)(C) for any potential 35 U.S.C. 102(a)(2) prior art against the later invention. Claim 1-2, 6-7, and 21-32 is/are rejected under 35 U.S.C. 103 as being unpatentable over Devroye (US 20210251649 A1) (previously of record) in view of Grace et al. (US 20140277037 A1). Regarding claim 1, Devroye discloses a punch assembly for removing hair follicles from surrounding tissue (Figure 11-13; Paragraph 0029), the punch assembly comprising: a substantially cylindrical body (T1+T2) having a proximal end (T1) and a distal end (T2) (Figure 7; Paragraph 0076), the substantially cylindrical body formed about a central axis and extending distally from the proximal end (Figure 7), the substantially cylindrical body having a hair follicle-receiving chamber (lumen of T2) at least partially defined by an interior wall (822) within the substantially cylindrical body, the interior wall extending distally from the proximal end (Figure 8; Paragraph 0083); and a plurality of denticulations (1104) arranged at the distal end of the substantially cylindrical body (Figure 11-12; Paragraph 0085), wherein the plurality of denticulations individually comprise lateral and medial surfaces (labeled in Annotated Figure 12) individually substantially rigidly beveled in a direction away from the central axis (Figure 12), wherein the lateral surfaces of the plurality of denticulations are located farther from the central axis than the medial surfaces of the plurality of denticulations (Annotated Figure 12), wherein the medial surfaces of the plurality of denticulations are positioned between the lateral surfaces of the plurality of denticulations and the central axis (Annotated Figure 12), and wherein the lateral and medial surfaces of the plurality of denticulations a meet to form respective outermost sharpened cutting edges (1110) (Figure 13; Paragraph 0080; 0086), wherein the plurality of denticulations arranged at the distal end of the substantially cylindrical body are interspersed by a plurality of additional symmetrical edges (labeled in Annotated Figure 12) recessed from the respective outermost sharpened cutting edges of the plurality of denticulations (Figure 11; Annotated Figure 12; Paragraph 0085). (Devroye states in Paragraph 0114 “that various embodiments can be combined”, thus components from multiple embodiments are considered to be disclosed by Devroye). PNG media_image1.png 206 405 media_image1.png Greyscale Devroye fails to explicitly disclose wherein the additional edges are cutting edges. However, Grace is directed to a cutting device and teaches a cylindrical body (1300) wherein a plurality of denticulations arranged at the distal end (1332) of the substantially cylindrical body are interspersed by a plurality of additional symmetrical cutting edges (1350) recessed from the respective outermost sharpened cutting edges of the plurality of denticulations (Figure 13; Paragraph 0020; 0129). A person of ordinary skill in the art before the effective filing date of the claimed invention would have been motivated to modify Devroye such that the additional edges are cutting edges, as taught by Grace, as both references and the claimed invention are directed to tissue cutters. It would be obvious to someone of ordinary skill in the art before the effective filing date of the claimed invention to have modified Devroye with the teachings of Grace by incorporating the additional edges are cutting edges in order to create a serrated blade with smaller contact points which apply stronger pressure at a sharper angle, thereby improving cutting. Regarding claim 2, Devroye further discloses wherein the plurality of denticulations comprises between 3 and 10 denticulations (Figure 12) (Figure 12 shows four and eight denticulations). Regarding claim 6, Devroye further discloses wherein the lateral and medial surfaces of the plurality of denticulations are beveled at different angles of between about 15° and about 45° with respect to the central axis (Figure 22; Paragraph 0099) (when the edge is beveled, the lateral and medial surfaces would be beveled, which can include angles in the claimed range). Regarding claim 7, Devroye further discloses wherein the lateral and medial surfaces of the plurality of denticulations are beveled at angles of between about 22° and about 38° with respect to the central axis (Figure 22; Paragraph 0099) (when the edge is beveled, the lateral and medial surfaces would be beveled, which can include angles in the claimed range). Regarding claim 21, Devroye as modified by Grace further discloses the plurality of additional symmetrical cutting edges recessed from the respective outermost sharpened cutting edges of the plurality of denticulations to coincide with the interior wall of the substantially cylindrical body (the innermost edges of the labeled edges of Devroye are adjacent to the wall of the cylindrical body) (Figure 11; Annotated Figure 12; Paragraph 0085), and wherein the plurality of denticulations are fully capable to substantially encircle a hair follicle during a hair follicle extraction and/or removal operation. Regarding claim 22, Devroye further discloses wherein the substantially cylindrical body is to facilitate application of one or more lateral forces to the plurality of denticulations arranged at the distal end of the substantially cylindrical body during the hair follicle extraction and/or removal operation (Paragraph 0066; 0068). Regarding claim 23, Devroye further discloses wherein, at least in part via the application of the one or more lateral forces, the plurality of denticulations arranged at the dis end of the substantially cylindrical body are to facilitate separation of the substantially encircled hair follicle from tissue surrounding the hair follicle during the hair follicle extraction and/or removal operation (Paragraph 0030; 0066). Regarding claim 24, Devroye further discloses wherein, to facilitate separation of the substantially encircled hair follicle from the surrounding tissue, the plurality of denticulations arranged at the distal end of the substantially cylindrical body are to facilitate formation of a substantially ellipse-snaped wound (Figure 8, 11; Paragraph 0065) (the cutting edge is annular, thus results in a "substantially elliptically-shaped wound"). Regarding claim 25, Devroye further discloses wherein the plurality of denticulations arranged at the distal end of the substantially cylindrical body are to facilitate formation of the substantially ellipse- shaped wound responsive at least in part to removal of the plurality of denticulations arranged at the distal end of the substantially cylindrical body from the surrounding tissue (Figure 8; Paragraph 0083). Regarding claim 26, Devroye further discloses wherein the hair-follicle receiving chamber is to receive and/or maintain the substantially encircled hair follicle responsive at least in part to the removal of the plurality of denticulations arranged at the distal end of the substantially cylindrical body from the surrounding tissue (Figure 8, 13; Paragraph 0066; 0068; 0083). Regarding claim 27, Devroye further discloses wherein, to facilitate formation of the substantially ellipse-shaped wound, the plurality of denticulations arranged at the distal end of the substantially cylindrical body are to facilitate formation of a scallop-shaped inferior margin of the wound and/or an irregularly shaped exterior margin of the wound. ("[A]pparatus claims cover what a device is, not what a device does." Hewlett-Packard Co. V. Bausch & Lomb Inc., 909 F.2d 1464, 1469, 15 USPQ2d 1525, 1528 (Fed. Cir. 1990) (emphasis in original). A claim containing a "recitation with respect to the manner in which a claimed apparatus is intended to be employed does not differentiate the claimed apparatus from a prior art apparatus" if the prior art apparatus teaches all the structural limitations of the claim. As such, the device of Devroye is fully capable of forming formation of a scallop-shaped inferior margin of the wound and/or an irregularly shaped exterior margin of the wound). Regarding claim 28, Devroye further discloses wherein the plurality of denticulations arranged at the distal end of the substantially cylindrical body are to facilitate formation of the substantially ellipse snaped wound having a measure of eccentricity of between approximately 0.5 and approximately 0.95 (Figure 8, 11; Paragraph 0065). ("[A]pparatus claims cover what a device is, not what a device does." Hewlett-Packard Co. V. Bausch & Lomb Inc., 909 F.2d 1464, 1469, 15 USPQ2d 1525, 1528 (Fed. Cir. 1990) (emphasis in original). A claim containing a "recitation with respect to the manner in which a claimed apparatus is intended to be employed does not differentiate the claimed apparatus from a prior art apparatus" if the prior art apparatus teaches all the structural limitations of the claim. As such, the device of Devroye is fully capable of creating a wound having a measure of eccentricity of between approximately 0.5 and approximately 0.95.). Regarding claim 29, Devroye further discloses wherein the plurality of denticulations arranged at the distal end of the substantially cylindrical body are to facilitate formation of the substantially ellipse snaped wound having a measure of eccentricity of comprises a value of between approximately 0.63 and approximately 0.8 (Figure 8, 11; Paragraph 0065). ("[A]pparatus claims cover what a device is, not what a device does." Hewlett-Packard Co. V. Bausch & Lomb Inc., 909 2d 1464, 1469, 15 USPQ2d 1525, 1528 (Fed. Cir. 1990) (emphasis in original). A claim containing a "recitation with respect to the manner in which a claimed apparatus is intended to be employed does not differentiate the claimed apparatus from a prior art apparatus" if the prior art apparatus teaches all the structural limitations of the claim. As such, the device of Devroye is fully capable of creating a wound having a measure of eccentricity of between approximately 0.63 and approximately 0.8.) Regarding claim 30, Devroye further discloses wherein the plurality of denticulations arranged at the distal end of the substantially cylindrical body are to facilitate formation of the substantially ellipse-shaped wound having a major axis that substantially aligns with one or more of Langer's lines proximate with the wound (Paragraph 0067). ("[A]pparatus claims cover what a device is, not what a device does." Hewlett-Packard Co. V. Bausch & Lomb Inc., 909 F.2d 1464, 1469, 15 USPQ2d 1525, 1528 (Fed. Cir. 1990) (emphasis in original). A claim containing a "recitation with respect to the manner in which a claimed apparatus is intended to be employed does not differentiate the claimed apparatus from a prior art apparatus" if the prior art apparatus teaches all the structural limitations of the claim.) Regarding claim 31, Devroye further discloses wherein the plurality of denticulations arranged at the distal end of the substantially cylindrical body are to facilitate formation of the substantially ellipse- snaped wound to facilitate a reduced healing time following the hair follicle extraction and/or removal operation (Figure 8, 11; Paragraph 0068). ("[A]pparatus claims cover what a device is, not what a device does." Hewlett-Packard Co. V. Bausch & Lomb Inc., 909 F.2d 1464, 1469, 15 USPQ2d 1525, 1528 (Fed. Cir. 1990) (emphasis in original). A claim containing a "recitation with respect to the manner in which a claimed apparatus is intended to be employed does not differentiate the claimed apparatus from a prior art apparatus" if the prior art apparatus teaches all the structural limitations of the claim.) Regarding claim 32, Devroye further discloses wherein the plurality of denticulations arranged at the distal end of the substantially cylindrical body are to facilitate formation of the substantially ellipse-shaped wound to facilitate reduced scarring following the hair follicle extraction and/or removal operation (Paragraph 0069). Claim 3 is rejected under 35 U.S.C. 103 as being unpatentable over Devroye in view of Grace and further in view of Lee (KR 101868395 B1) (noted on IDS). Regarding claim 3, Devroye as modified by Grace discloses the punch assembly of claim 1, but fails to explicitly disclose wherein the plurality of denticulations consists of 5 or 6 denticulations. However, Lee is directed to a punch device and teaches wherein the plurality of denticulations (123) consists of 6 denticulations (Figure 4). There are a number of choices available to a person of ordinary skill in the art for the number of denticulations in a punch device. Therefore, “When there is a design need or market pressure to solve a problem and there are a finite number of identified, predictable solutions, a person of ordinary skill has good reason to pursue the known options within his or her technical grasp. If this leads to the anticipated success, it is likely the product not of innovation but of ordinary skill and common sense. In that instance the fact that a combination was obvious to try might show that it was obvious under 103” KSR Int’l Co. v. Teleflex, Inc., 550 U.S. __, 82 USPQ2d 1385 (2007). Claim(s) 4-5 are rejected under 35 U.S.C. 103 as being unpatentable over Devroye in view of Grace and further in view of Umar (US 20230355267 A1) (previously of record). Regarding claim 4-5, Devroye as modified by Grace discloses the punch assembly of claim 1, and further discloses wherein the substantially cylindrical body comprises a narrowed portion (labeled in Annotated Figure 3) that terminates at the distal end (Annotated Figure 3), but fails to explicitly disclose the narrowed portion having a length of between 1.75 mm and 5.0 mm. However, Umar is directed to a punch device and teaches a punch (10) with a narrowed portion (26) having a length of between 0.5 mm to 5 mm, encompassing the claimed range of between 1.75 mm and 5.0 mm and a width (diameter) of 0.5 mm to 3 mm, encompassing the claimed range of between 0.5 mm and 0.75 mm (Figure 1; Paragraph 0160; 0172). A person of ordinary skill in the art before the effective filing date of the claimed invention would have been motivated to modify Devroye as modified by Grace such that a narrowed portion having a length of between 1.75 mm and 5.0 mm, as taught by Umar, as both references and the claimed invention are directed to punches. It would be obvious to someone of ordinary skill in the art before the effective filing date of the claimed invention to have modified Devroye as modified by Grace with the teachings of Umar by incorporating a narrowed portion having a length of between 1.75 mm and 5.0 mm since it has been held change in size/proportion does not distinguish over the prior art. In re Rose, 220 F.2d 459, 105 USPQ 237 (CCPA 1955). n re Rinehart, 531 F.2d 1048, 189 USPQ 143 (CCPA 1976). MPEP 2144 Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to ZEHRA JAFFRI whose telephone number is (571)272-7738. The examiner can normally be reached 8 AM-5:30 PM. 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, DARWIN EREZO can be reached at (571) 272-4695. 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. /Z.J./Examiner, Art Unit 3771 /KATHERINE H SCHWIKER/Primary Examiner, Art Unit 3771
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Prosecution Timeline

Show 9 earlier events
Jul 03, 2025
Non-Final Rejection mailed — §103
Oct 01, 2025
Applicant Interview (Telephonic)
Oct 01, 2025
Examiner Interview Summary
Oct 02, 2025
Response Filed
Feb 09, 2026
Final Rejection mailed — §103
May 06, 2026
Request for Continued Examination
May 11, 2026
Response after Non-Final Action
May 29, 2026
Non-Final Rejection mailed — §103 (current)

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Prosecution Projections

5-6
Expected OA Rounds
61%
Grant Probability
99%
With Interview (+45.7%)
3y 5m (~0m remaining)
Median Time to Grant
High
PTA Risk
Based on 80 resolved cases by this examiner. Grant probability derived from career allowance rate.

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