Prosecution Insights
Last updated: April 19, 2026
Application No. 18/775,509

TUNABLE SINGLE-INPUT DUAL-OUTPUT ACOUSTIC FILTER CIRCUIT

Non-Final OA §102
Filed
Jul 17, 2024
Examiner
PATEL, RAKESH BHASKARBHAI
Art Unit
2843
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Qorvo US Inc.
OA Round
1 (Non-Final)
92%
Grant Probability
Favorable
1-2
OA Rounds
2y 4m
To Grant
99%
With Interview

Examiner Intelligence

Grants 92% — above average
92%
Career Allow Rate
870 granted / 950 resolved
+23.6% vs TC avg
Moderate +13% lift
Without
With
+13.4%
Interview Lift
resolved cases with interview
Typical timeline
2y 4m
Avg Prosecution
24 currently pending
Career history
974
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
38.4%
-1.6% vs TC avg
§102
33.4%
-6.6% vs TC avg
§112
20.0%
-20.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 950 resolved cases

Office Action

§102
DETAILED ACTION Notice to Applicant The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . 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. Claims 1-20 are pending. 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. Claims 1-3 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Volatier et al. US 2008/0129416. As per claims 1-3, Volatier et al. discloses in Fig. 9 an acoustic resonator structure (e.g. switchable filter 500) comprising: as per claim 1, a ferroelectric coupling layer (e.g. electrostrictive layers 110a and 110b; As stated in Paragraph 41, the electrostrictive material is barium titanate, which is a well-known ferroelectric material.) configured to tune a band-pass frequency range in response to receiving a tuning voltage (Paragraphs 68-69; DC control voltage DC2 adjusts a pass band (i.e. “tune a band-pass frequency range”) of the filter.); and a pair of acoustic resonators (e.g. resonators 118a and 118b) coupled to each other via the ferroelectric coupling layer (Paragraph 63; Resonators 118a and 118b are coupled to one another through layers 116 and resonators 108a and 108b which comprise the defined “ferroelectric coupling layer”.) and interconnected between an input port (e.g. input Vin) and an output port (e.g. output Vout) to: block a signal between the input port and the output port inside the band-pass frequency range; and pass the signal from the input port to the output port outside the band-pass frequency range (In Paragraph 26 of Applicant’s instant specification, the Applicant states that “band-pass frequency range” defines a frequency range where the signal is blocked and “band-stop frequency range” defines a frequency range where the signal is passed. The filter 500 functions as a bandpass filter, where signals within the pass band are blocked (i.e. passed) and signals outside the pass band are passed (i.e. blocked).); as per claim 2, wherein the pair of acoustic resonators comprising: a first acoustic resonator (e.g. resonator 118a) comprising a first electrode (e.g. electrode 124a), a second electrode (e.g. electrode 122a), and a first piezoelectric layer (e.g. piezoelectric layer 120a) provided between the first electrode and the second electrode; and a second acoustic resonator (e.g. resonator 118b) comprising a third electrode (e.g. electrode 124b), a fourth electrode (e.g. electrode 122b), and a second piezoelectric layer (e.g. piezoelectric layer 120b) provided between the third electrode and the fourth electrode; and as per claim 3, the first electrode and the third electrode are connected to the input port (Layers 124a and 124b are electrically connected to Vin.); the second electrode and the fourth electrode are connected to the output port (Layers 122a and 122b are electrically connected to Vout.); and the first piezoelectric layer and the second piezoelectric layer are made with materials having inverted polarities (Paragraph 66; Resonators 118a and 118b have inverted properties (i.e. “polarities”).). Claims 5, 14, and 20 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Khlat et al. US 2019/0326944. As per claims 5, 14, and 20, Khlat et al. discloses a wireless device (Paragraph 3, mobile communication devices) comprising a tunable single-input dual-output (SIDO) acoustic filter circuit (Fig. 2b, diplexer 10a which includes acoustic filters 68 and 70 as stated in Paragraph 39) and a method for operating the SIDO filter circuit comprising: as per claims 5, 14, and 20, an input circuit (e.g. coupler 16) configured to receive a signal (e.g. receive signal 62) and output the signal in a band-pass frequency range (The coupler 16 outputs a signal 64I in a band pass frequency range of the diplexer 10a.); an output circuit (e.g. coupler 18) configured to output the signal in a band-stop frequency range outside the band-pass frequency range (The coupler 18 outputs a signal outside of the band pass frequency range to ground 54.); and an in-phase path (e.g. bandstop filter 68) and a quadrature path (e.g. bandstop filter 70) provided in parallel between the input circuit and the output circuit and each configured to: block the signal in the band-pass frequency range to thereby cause the signal to be outputted from the input circuit; and pass the signal in the band-stop frequency range to thereby cause the signal to be outputted from the output circuit (In Paragraph 26 of Applicant’s instant specification, the Applicant states that “band-pass frequency range” defines a frequency range where the signal is blocked and “band-stop frequency range” defines a frequency range where the signal is passed. Each of the bandpass filters 68 and 70 function in the following manner: signals within the pass band are blocked (i.e. passed) and signals outside the pass band are passed (i.e. blocked).). Allowable Subject Matter Claims 4, 6-13, and 15-19 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 Any inquiry concerning this communication or earlier communications from the examiner should be directed to RAKESH PATEL whose telephone number is (571)272-0961. The examiner can normally be reached 9AM-5PM EST 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, Andrea Lindgren-Baltzell can be reached at 571-272-5918. 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. /RAKESH B PATEL/Primary Examiner, Art Unit 2843
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Prosecution Timeline

Jul 17, 2024
Application Filed
Nov 13, 2025
Non-Final Rejection — §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
92%
Grant Probability
99%
With Interview (+13.4%)
2y 4m
Median Time to Grant
Low
PTA Risk
Based on 950 resolved cases by this examiner. Grant probability derived from career allow rate.

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