Office Action Predictor
Last updated: April 16, 2026
Application No. 18/239,114

CYLINDRICAL MEMS STRUCTURES FOR AUDIO COMPONENTS

Non-Final OA §103
Filed
Aug 28, 2023
Examiner
OJO, OYESOLA C
Art Unit
2695
Tech Center
2600 — Communications
Assignee
Apple INC.
OA Round
2 (Non-Final)
82%
Grant Probability
Favorable
2-3
OA Rounds
2y 1m
To Grant
88%
With Interview

Examiner Intelligence

Grants 82% — above average
82%
Career Allow Rate
587 granted / 715 resolved
+20.1% vs TC avg
Moderate +6% lift
Without
With
+5.9%
Interview Lift
resolved cases with interview
Fast prosecutor
2y 1m
Avg Prosecution
21 currently pending
Career history
736
Total Applications
across all art units

Statute-Specific Performance

§101
1.1%
-38.9% vs TC avg
§103
56.8%
+16.8% vs TC avg
§102
24.0%
-16.0% vs TC avg
§112
9.8%
-30.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 715 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 . Status of Claims Claims 1-3, 17 and 20 are rejected Claims 4-16 and 18-19 are objected to Response to Arguments Applicant’s arguments, see pages 6-11, filed 08/28/2025, with respect to the rejection(s) of claim(s) 1, 17 and 20 under 35 USC § 102/103 have been fully considered and are persuasive. Therefore, the rejections have been withdrawn. However, upon further consideration, a new ground(s) of rejection is made in view of newly found prior art reference. 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. 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. Claim(s) 1-3, 17 and 20 is/are rejected under 35 U.S.C. 103 as being unpatentable over Deas et al (US PUB 20180035229, hereinafter Deas) in view of Nawaz et al (US PUB 20210029470, hereinafter Nawaz). Regarding claim 1, Deas discloses a speaker (see [0001] and figure 1), comprising: a front volume (e.g. a front cavity 110); a back volume (e.g. a back cavity 109), (see figure 1A); and a corrugated microelectromechanical (MEMS) structure disposed between the front volume and the back volume (e.g. a corrugated membrane 314 having alternate ridges and grooves which project above and below a notional main plane 316), (see Deas, [0032], [0065], [0070]-[0071], and [0080]-[0081], also figures 1-5). Deas does not explicitly disclose that the corrugated diaphragm 314 is cylindrical in shape. However, Nawaz in the same field of endeavor teaches that it is well known in the art to apply a cylindrical corrugated microelectromechanical (MEMS) structure (e.g. a bellow diaphragm 572) in a sound device as demonstrated in [0145] and figure 29. Therefore, it would have been obvious to any person having an ordinary skill in the art to incorporate a cylindrical corrugated MEMS structure as taught by Nawaz in the teachings of Deas in order to achieve a MEMS structure having a relatively high elasticity with reduced stiffness, and thereby further improving the output sound quality of the device. Regarding claim 2, Deas as modified by Nawaz discloses the speaker of claim 1, wherein the cylindrical corrugated MEMS structure extends in a circumferential direction around an open cylindrical core that extends along an axis and that defines at least a portion of the front volume (see Nawaz, figures 29 and 35). Regarding claim 3, Deas as modified by Nawaz discloses the speaker of claim 2, wherein the cylindrical corrugated MEMS structure comprises a single contiguous structure that extends in the circumferential direction around the open cylindrical core and that includes a plurality of corrugations around the circumferential direction (see Nawaz, figures 29 and 35). Regarding claim 17, Deas discloses a method of operating a speaker (see [0001] and figure 1), the method comprising: applying a voltage to a corrugated microelectromechanical (MEMS) structure that is disposed between a front volume and a back volume; and deforming, by the applied voltage, the cylindrical corrugated MEMS structure to generate sound with the speaker by moving air within the cylindrical corrugated MEMS structure (e.g. a bias voltage is applied via one or more conductive elements to a corrugated membrane 317 suspended between a front cavity 110 and a back cavity 109, and causing the membrane to deform, and thereby generating sound within the speaker), (see Deas, [0032], [0065], [0070]-[0071], and [0080]-[0081], also figures 1-5). Deas does not explicitly disclose that the corrugated diaphragm 314 is cylindrical in shape. However, Nawaz in the same field of endeavor teaches that it is well known in the art to apply a cylindrical corrugated microelectromechanical (MEMS) structure (e.g. a bellow diaphragm 572) in a sound device as demonstrated in [0145] and figure 29. Therefore, it would have been obvious to any person having an ordinary skill in the art to incorporate a cylindrical corrugated MEMS structure as taught by Nawaz in the teachings of Deas in order to achieve a MEMS structure having a relatively high elasticity with reduced stiffness, and thereby further improving the output sound quality of the device. More so, the combination of Deas and Nawaz further teaches: the sound is generated by moving air within an open cylindrical core of the cylindrical corrugated MEMS structure (see Nawaz, figures 29 and 35). Regarding claim 20, Deas discloses an electronic device comprising a speaker (see [0001] and figure 1), comprising: a front volume (e.g. a front cavity 110); a back volume (e.g. a back cavity 109), (see figure 1A); and a corrugated microelectromechanical (MEMS) structure (e.g. a plurality of corrugated membrane 317 having alternate ridges and grooves which project above and below a notional main plane 316), (see Deas, [0032], [0065], [0070]-[0071], and [0080]-[0081], also figures 1-5). Deas does not explicitly disclose that the cylindrical corrugated structure having an open cylindrical core that defines at least a portion of the front volume. Deas does not explicitly disclose that the corrugated diaphragm 314 is cylindrical in shape. However, Nawaz in the same field of endeavor teaches that it is well known in the art to apply a cylindrical corrugated microelectromechanical (MEMS) structure (e.g. a bellow diaphragm 572) in a sound device as demonstrated in [0145] and figure 29. Therefore, it would have been obvious to any person having an ordinary skill in the art to incorporate a cylindrical corrugated MEMS structure as taught by Nawaz in the teachings of Deas in order to achieve a MEMS structure having a relatively high elasticity with reduced stiffness, and thereby further improving the output sound quality of the device. More so, the combination of Deas and Nawaz further teaches: the cylindrical corrugated structure having an open cylindrical core that defines at least a portion of the front volume (see Nawaz, figures 29 and 35). Allowable Subject Matter Claims 4-16, 18 and 19 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 The prior art made of record provided on PTO 892 and not relied upon is considered pertinent to applicant's disclosure. Any inquiry concerning this communication or earlier communications from the examiner should be directed to OYESOLA C OJO whose telephone number is (571)272-0848. The examiner can normally be reached Monday through Friday 8:00am to 4:00pm Central Time. 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, Vivian Chin can be reached at 571-272-7840. 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. /OYESOLA C OJO/Primary Examiner, Art Unit 2695.
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Prosecution Timeline

Aug 28, 2023
Application Filed
Sep 12, 2024
Response after Non-Final Action
May 26, 2025
Non-Final Rejection — §103
Aug 28, 2025
Response Filed
Dec 15, 2025
Applicant Interview (Telephonic)
Dec 19, 2025
Examiner Interview Summary
Jan 04, 2026
Non-Final Rejection — §103 (current)

Precedent Cases

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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
82%
Grant Probability
88%
With Interview (+5.9%)
2y 1m
Median Time to Grant
Moderate
PTA Risk
Based on 715 resolved cases by this examiner. Grant probability derived from career allow rate.

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