Prosecution Insights
Last updated: May 29, 2026
Application No. 18/679,282

INCREASED MUT COUPLING EFFICIENCY AND BANDWIDTH VIA EDGE GROOVE, VIRTUAL PIVOTS, AND FREE BOUNDARIES

Non-Final OA §102§103
Filed
May 30, 2024
Priority
Sep 12, 2019 — provisional 62/899,602 +1 more
Examiner
GORDON, BRYAN P
Art Unit
2837
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Exo Imaging Inc.
OA Round
1 (Non-Final)
77%
Grant Probability
Favorable
1-2
OA Rounds
11m
Est. Remaining
91%
With Interview

Examiner Intelligence

Grants 77% — above average
77%
Career Allowance Rate
747 granted / 972 resolved
+8.9% vs TC avg
Moderate +14% lift
Without
With
+14.3%
Interview Lift
resolved cases with interview
Typical timeline
2y 11m
Avg Prosecution
21 currently pending
Career history
995
Total Applications
across all art units

Statute-Specific Performance

§101
0.3%
-39.7% vs TC avg
§103
87.9%
+47.9% vs TC avg
§102
6.9%
-33.1% vs TC avg
§112
1.9%
-38.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 972 resolved cases

Office Action

§102 §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 . 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) 1-14 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Huang (PG Pub 20080194053). Considering claim 1, Huang (Figure 2B) teaches micromachined ultrasonic transducer (MUT) comprising: a diaphragm (210 + paragraph 0082) with substantially free edges; one or more electrodes (225 + 250 + paragraph 0082); and one or more anchors (203 + paragraph 0082) clamping the diaphragm at locations within and/or along a diaphragm periphery to a substrate (201 + paragraph 0082). Considering claim 2, Huang teaches wherein the MUT is a pMUT comprising a piezoelectric film (paragraph 0028). Considering claim 3, Huang (Figure 2B) teaches wherein the one or more electrodes (225 + 250 + paragraph 0082) are electrically coupled to the piezoelectric film. Considering claim 4, Huang (Figure 2B) teaches wherein the piezoelectric film is situated opposite the one or more anchors (paragraph 0028), on a same side as the one or more anchors or between the one or more anchors. Considering claim 5, Huang (Figure 2A) teaches wherein the diaphragm comprises a groove (215 + paragraph 0087). Considering claim 6, Huang (Figure 2A) teaches a plurality of anchors (203m + 203 + paragraph 0082), wherein a subset of the plurality of anchors are attached to one or more vertical cantilever shells (200 + paragraph 0073). Considering claim 7, Huang (Figure 2A) teaches wherein the diaphragm comprises a groove (215 + paragraph 0087). Considering claim 8, Huang teaches wherein the MUT is a cMUT (paragraph 0073). Considering claim 9, Huang (Figures 2A-2B) teaches wherein the one or more electrodes (225 + 250 + paragraph 0077) are electrically coupled to the diaphragm between a gap (260 + paragraph 0079). Considering claim 10, Huang (Figures 2A-2B) teaches wherein the diaphragm comprises a groove (215 + paragraph 0087). Considering claim 11, Huang (Figures 2A-2B) teaches a plurality of anchors (203m + 203 + paragraph 0082), wherein a subset of the plurality of anchors are attached to one or more vertical cantilever shells (200 + paragraph 0073). Considering claim 12, Huang (Figures 2A-2B) teaches a plurality of anchors, wherein a subset of the plurality of anchors are attached to one or more vertical cantilever sheets, and wherein the diaphragm comprises a groove (215 + paragraph 0087). Considering claim 13, Huang (Figures 2A-2B) teaches a micromachined ultrasonic transducer (MUT) comprising a clamped diaphragm comprising a groove (215 + paragraph 0087), wherein one or more anchors (203m + 203 + paragraph 0082) clamped the diaphragm to a substrate (201 + paragraph 0082), at least one of the one or more anchors being attached to a vertical cantilever shell (200 + paragraph 0073), the vertical cantilever shell attached to an edge of the diaphragm (210 + paragraph 0082). Considering claim 14, Huang (Figures 2A-2B) teaches wherein the vertical cantilever shell (200 + paragraph 0073) forms a virtual pivot substantially preventing out of plane motion but allowing for rotation of the diaphragm edge while imparting a counter-torque (paragraphs 0075-0076). 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(s) 15-20 is/are rejected under 35 U.S.C. 103 as being unpatentable over Huang (PG Pub 20080194053). Considering claim 15, Huang disclose claimed invention except for the vertical cantilever shell has a thickness between 0.1 microns and 50 microns and wherein the vertical cantilever shell has a height between 1 and 100 times greater than its thickness. It would have been an obvious matter of design choice to have the vertical cantilever shell has a thickness between 0.1 microns and 50 microns and wherein the vertical cantilever shell has a height between 1 and 100 times greater than its thickness, since such a modification would have involved a mere change in the size of a component. A change in size is generally recognized as being within the level of ordinary skill in the art. Considering claim 16, Huang (Figures 2A-2B) teaches wherein the vertical cantilever shell is not continuous about the diaphragm edge but has areas with no virtual pivot (200 + paragraph 0073). Considering claim 17, Huang teaches wherein the MUT is multimodal (paragraph 0009). Considering claim 18, Huang teaches a MUT array configured for ultrasound imaging (paragraph 0010), the array comprising a plurality of the MUTs. Considering claim 19, Huang teaches wherein each MUT of the plurality of the MUTs is a pMUT or a cMUT (paragraphs 0021 + 0073). Considering claim 20, Huang teaches wherein each MUT comprises a vertical cantilever shell formed from multiple etches (paragraph 0073). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to BRYAN P GORDON whose telephone number is (571)272-5394. The examiner can normally be reached M-F 8 a.m. - 4:30 p.m.. 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, Dedei K Hammond can be reached at 571-270-7938. 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. /BRYAN P GORDON/Primary Examiner, Art Unit 2837
Read full office action

Prosecution Timeline

May 30, 2024
Application Filed
Feb 04, 2026
Non-Final Rejection mailed — §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

1-2
Expected OA Rounds
77%
Grant Probability
91%
With Interview (+14.3%)
2y 11m (~11m remaining)
Median Time to Grant
Low
PTA Risk
Based on 972 resolved cases by this examiner. Grant probability derived from career allowance rate.

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