Prosecution Insights
Last updated: April 19, 2026
Application No. 18/092,176

PHASE SHIFTERS FOR ANTENNA TILT

Non-Final OA §103
Filed
Dec 30, 2022
Examiner
MAKHDOOM, SAMARINA
Art Unit
3648
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Skyworks Solutions Inc.
OA Round
3 (Non-Final)
70%
Grant Probability
Favorable
3-4
OA Rounds
3y 1m
To Grant
97%
With Interview

Examiner Intelligence

Grants 70% — above average
70%
Career Allow Rate
71 granted / 101 resolved
+18.3% vs TC avg
Strong +27% interview lift
Without
With
+26.6%
Interview Lift
resolved cases with interview
Typical timeline
3y 1m
Avg Prosecution
77 currently pending
Career history
178
Total Applications
across all art units

Statute-Specific Performance

§101
2.7%
-37.3% vs TC avg
§103
75.1%
+35.1% vs TC avg
§102
21.4%
-18.6% vs TC avg
§112
0.8%
-39.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 101 resolved cases

Office Action

§103
DETAILED ACTION 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and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114.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 January 2, 2026 has been entered. Claim 24 is amended. Claim 1-23 and 25-27 are cancelled. Claim 24 is pending this application. 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. Claim 24 is rejected under 35 U.S.C. 103 as being unpatentable over Fitzgerald et al (US 2020/0411984 A1) in view of Patel et al (US 2017/0187099 A1). Regarding Claim 24, Fitzgerald discloses a wireless system comprising [0062 figure 3A]: a transceiver configured to generate a signal to be transmitted [0054]; a common power amplifier configured to amplify the signal to provide an amplified signal [0048-0050 for having amplifiers for the signal]; a common filter configured to filter the amplified signal to provide a filtered signal [0048-0050 for using a filter with the transceiver and amplifier]: an antenna architecture [0066], a plurality of N signal paths each having first and second ends, N being a positive integer greater than 2 [0033 for splitting signal into multiple feed lines, and 0056-0057], the first end of each signal path coupled to the common node, such that the filtered signal provided at the common node splits into respective signals in the signal paths [figure 3A common node Rfin (22W) element 234], a selected one of the signal paths configured to provide a zero or substantially nil phase shift for the respective signal [0060 for having a phase shift of 0 degrees], the other signal paths including respective phase shifters configured to provide different phase shifts for the respective signals [0060 for having a phase shift of 35 degrees on first branch (path) and 105 degrees on the second branch (path) and means to control (select) the switches to the desired angle], such that the signals emerging from the signal paths are provided with incremental phase shifts, the antenna architecture further including an antenna assembly having an antenna pair coupled to the second end of each signal path [0062 for incremental phase shifts of 30 and 60 degrees], such that the signals provided to the antenna assembly result in a transmitted signal being directed at a tilt angle with respect to the antenna assembly [0062 for steering the beam with phase shifts]. Fitzgerald fails to explicitly teach a common filter configured to filter the amplified signal to provide a filtered signal to a common node. Patel has multi-band antennas include one or more duplexers (abstract) and teaches a common filter configured to filter the amplified signal to provide a filtered signal to a common node [0020 for using first duplexer-204 (single common node) to splitter-206 to phase shifters 208 210, to second duplexer element 216 and then to radiating elements 220 222]. It would have been obvious to a person of ordinary skill in the art before the effective filling date of the applicant’s invention for modifying the tilt position techniques, as disclosed by Fitzgerald, further including the signal calculations as taught by Patel for the purpose to isolate the sub-components of the received RF signal from the respective sub-components of any transmitted RF signals (Patel, 0021). Response to Arguments Applicant’s arguments with respect to claim 24 has been considered but are moot because the new ground of rejection does not rely on any reference applied in the prior rejection of record for any teaching or matter specifically challenged in the argument. On page 5, 4th paragraph of the applicant’s arguments, the applicant states that Fitzgerald antenna architecture have multiple power paths. The examiner disagrees: new reference Patel teaching using a duplexer element 204 as a common node for RF signals. The reference covers the structural position of a common filter at a common node [Fitzgerald, 0020-0021]. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to SAMARINA MAKHDOOM whose telephone number is (703)756-1044. The examiner can normally be reached Monday – Thursdays from 8:30 to 5:30 pm eastern 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, William Kelleher can be reached on 571-272-7753. 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. /SAMARINA MAKHDOOM/ Examiner, Art Unit 3648
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Prosecution Timeline

Dec 30, 2022
Application Filed
Feb 24, 2025
Non-Final Rejection — §103
Jun 28, 2025
Response Filed
Jul 25, 2025
Final Rejection — §103
Jan 02, 2026
Request for Continued Examination
Feb 12, 2026
Response after Non-Final Action
Feb 19, 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

3-4
Expected OA Rounds
70%
Grant Probability
97%
With Interview (+26.6%)
3y 1m
Median Time to Grant
High
PTA Risk
Based on 101 resolved cases by this examiner. Grant probability derived from career allow rate.

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