Prosecution Insights
Last updated: October 25, 2026
Application No. 19/072,203

COMPACT ACOUSTIC DEVICE WITH ADAPTABLE FREQUENCY CONTROL

Non-Final OA §102
Filed
Mar 06, 2025
Priority
Mar 13, 2024 — EU 24163260.3
Examiner
SAN MARTIN, EDGARDO
Art Unit
2837
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Sonova AG
OA Round
1 (Non-Final)
76%
Grant Probability
Favorable
1-2
OA Rounds
8m
Est. Remaining
83%
With Interview

Examiner Intelligence

Grants 76% — above average
76%
Career Allowance Rate
911 granted / 1199 resolved
+8.0% vs TC avg
Moderate +7% lift
Without
With
+6.6%
Interview Lift
resolved cases with interview
Typical timeline
2y 4m
Avg Prosecution
26 currently pending
Career history
1234
Total Applications
across all art units

Statute-Specific Performance

§101
0.3%
-39.7% vs TC avg
§103
58.2%
+18.2% vs TC avg
§102
31.9%
-8.1% vs TC avg
§112
3.5%
-36.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1199 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 . 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 1 – 4, 15 and 16 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Van ‘T Hof et al. (US 11,291,586). With respect to claims 1, 15 and 16, Van ‘T Hof et al. teach an acoustic device (Fig.1) comprising a housing; a sound channel (Fig.1, Item 20) extending through the housing and between a sound inlet (Fig.1, Item 23a) configured to receive sound input from an external environment, and a sound outlet (Fig.1, Item 21a) configured to deliver sound output that has passed through the sound channel to an ear canal; a resonance cavity (Fig.1, Item 22) enclosed within the housing and in acoustic communication with the sound channel for causing an acoustic resonance in a frequency transmission spectrum of sound passing through the sound channel; and an adjustment mechanism (Fig.1, Item 15) configured to adjust a size of the resonance cavity for controlling a frequency of the acoustic resonance in the frequency transmission spectrum (Col.5, Line 62 – Col.6, Line 6 and Col.6, Line 46 – Col.7, Line 13). With respect to claim 2, Van ‘T Hof et al. teach wherein the resonance cavity (Fig.1, Item 22) is arranged in line with the sound channel (Fig.1, Item 20), and wherein the resonance cavity forms part of a shortest acoustic path between the sound inlet (Fig.1, Item 23a) and the sound outlet (Fig.1, Item 21a). With respect to claims 3 and 4, Van ‘T Hof et al. teach wherein the adjustment mechanism is configured to adjust the size of the resonance cavity in a continuous range of values between a maximum size and minimum size; or wherein the adjustable size of the resonance cavity is determined by an adjustable length of the resonance cavity (Fig.1; Col.5, Line 62 – Col.6, Line 6 and Col.6, Line 46 – Col.7, Line 13). Claims 1 and 5 – 20 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by De Jong et al. (US 11,622,890). With respect to claims 1, 5 and 15, De Jong et al. teach an acoustic device (Fig.1) comprising a housing; a sound channel (Fig.6A, Item 7) extending through the housing and between a sound inlet (Fig.6A, Item 3) configured to receive sound input from an external environment, and a sound outlet (Fig.6B, Item 14) configured to deliver sound output that has passed through the sound channel to an ear canal; a resonance cavity (Fig.6B, Items 21 – 23) enclosed within the housing and in acoustic communication with the sound channel for causing an acoustic resonance in a frequency transmission spectrum of sound passing through the sound channel; and an adjustment mechanism (Fig.2 Item 3) configured to adjust a size of the resonance cavity for controlling a frequency of the acoustic resonance in the frequency transmission spectrum (Col.5, Lines 24 – 63); and wherein the resonance cavity is formed by a tubular chamber extending along a circular trajectory (Figs.6B), wherein a length of the tubular chamber along the circular trajectory is adjustable by the adjustment mechanism (Fig.2, Item 3) for controlling the frequency of the acoustic resonance in the frequency transmission spectrum (Col.5, Lines 24 – 63). With respect to claim 6, De Jong et al. teach wherein the adjustment mechanism (Fig.2, Item 3) comprises or couples to a rotatable part of the acoustic device (Fig.2). With respect to claims 7, 8, 16 and 17, De Jong et al. teach wherein the housing comprises a first part (Fig.2, Item 3) and a second part (Fig.2, Item 9), wherein the first part is rotatably connected with respect to the second part (Fig.1); wherein the adjustment mechanism is configured to effect a rotation of the first part with respect to the second part; wherein the rotation of the first part with respect to the second part changes the size of the resonance cavity; and wherein the first part is configured to rotate with respect to the second part along a circular trajectory, wherein the circular trajectory coincides with a part of the sound channel forming the resonance cavity (Fig.6B; Col.5, Lines 24 – 63). With respect to claims 9 and 18, De Jong et al. teach wherein the first part (Fig.2, Item 3) of the housing is fixedly connected to the sound inlet (Fig.2, Item 7) and the second part (Figs.2 and 6B, Item 9) is fixedly connected to the sound outlet (Fig.6B, Item 14). With respect to claims 10 and 19, De Jong et al. teach wherein the resonance cavity is bounded at a first end of the circular trajectory by a first channel block (Fig.5, Item 17), and bounded at a second end of the circular trajectory by a second channel block (Fig.6B, Items 11 – 13); wherein the first channel block is configured to rotate inside the sound channel along the circular trajectory when the first part of the housing is rotated with respect to the second part of the housing; wherein the second channel block remains static inside the sound channel when the first part of the housing is rotated with respect to the second part of the housing (Col.5, Lines 24 – 63). With respect to claims 11 and 20, De Jong et al. teach wherein the first channel block (Fig.5, Item 17) is arranged adjacent to the sound inlet (Fig.5, Item 7); and wherein the second channel block (Fig.6B, Items 11 – 13) is arranged adjacent to the sound outlet (Fig.6B, Item 14). With respect to claims 12 and 13, De Jong et al. teach wherein the adjustment mechanism (Fig.1, Item 3) is externally accessible from outside the housing for manually adjusting the size of the resonance cavity, or wherein the adjustment mechanism comprises a knob (Fig.1, Item 3) or slider for adjusting the size of the resonance cavity (Col.5, Lines 24 – 63). With respect to claim 14, De Jong et al. teach wherein the sound outlet is formed by an outlet part protruding from the housing for connection with an ear plug (Fig.1, Item 5). Conclusion The attached hereto PTO Form 892 lists prior art made of record that the Examiner considered it pertinent to applicant's disclosure. Contact Information Any inquiry concerning this communication or earlier communications from the examiner should be directed to EDGARDO SAN MARTIN whose telephone number is (571)272-2074. The examiner can normally be reached on 9:00 - 5:00 M - F. 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, Shawki S. Ismail can be reached on 571-272-3985. 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. /Edgardo San Martin/ Edgardo San Martín Primary Examiner Art Unit 2837 September 26, 2026
Read full office action

Prosecution Timeline

Mar 06, 2025
Application Filed
Sep 30, 2026
Non-Final Rejection mailed — §102 (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

1-2
Expected OA Rounds
76%
Grant Probability
83%
With Interview (+6.6%)
2y 4m (~8m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1199 resolved cases by this examiner. Grant probability derived from career allowance rate.

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