Prosecution Insights
Last updated: April 19, 2026
Application No. 18/366,917

TUNABLE ATTENUATOR

Non-Final OA §102§103
Filed
Aug 08, 2023
Examiner
CHOE, HENRY
Art Unit
2843
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Nxp B V
OA Round
1 (Non-Final)
92%
Grant Probability
Favorable
1-2
OA Rounds
2y 1m
To Grant
65%
With Interview

Examiner Intelligence

Grants 92% — above average
92%
Career Allow Rate
1238 granted / 1339 resolved
+24.5% vs TC avg
Minimal -27% lift
Without
With
+-27.4%
Interview Lift
resolved cases with interview
Fast prosecutor
2y 1m
Avg Prosecution
29 currently pending
Career history
1368
Total Applications
across all art units

Statute-Specific Performance

§101
0.5%
-39.5% vs TC avg
§103
37.4%
-2.6% vs TC avg
§102
47.1%
+7.1% vs TC avg
§112
3.8%
-36.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1339 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, 8-10 and 18-20 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by [Harwood (Fig. 1); 3,495,193]. Regarding claims 1 and 10, Harwood discloses a tuning circuit comprising one or more transformer windings (13, 16) configured to facilitate attenuating a signal (output signal of 11), one or more conductive loops (15) provided underneath the transforming windings (13, 16), and a controller (bipolar transistor) which is configured to control an amount of current flowing through the conductive loops (15) and thereby providing a tunable attenuation of the signal (output signal of 11). Regarding claims 8, 9 and 18-20, the limitations recited in the claims are intended use of the invention. 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(s) 2 and 11 are rejected under 35 U.S.C. 103 as being unpatentable over [Harwood (Fig. 1); 3,495,193] in view of [Omid-Zohoor et al (Fig. 15); 9,780,755]. Harwood discloses all the limitations in the claims except for that the shield interposed between the transformer windings and the conductive loops. Omid-Zohoor et al discloses a tuning circuit comprising a shield (1440) interposed between the transformer windings (1436) and the conductive loops (1510). It would have been obvious to one of ordinary skill in the art at the time the invention was made would have found it obvious to have employed the shield at between the transformer windings (13 and 16 in Fig. 1 of Harwood) and the conductive loops (15 in Fig. 1 of Harwood) of the Harwood (Fig. 1), such as taught by Zohoor et al (Fig. 15) in order to provide the advantageous benefit of stabilizing the impedance variation of the tuning circuit. Allowable Subject Matter Claims 3-7 and 12-17 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 Henry Choe whose telephone number is (571)272-1760. The examiner can normally be reached Mon-Fri 6:00 AM- 6:00 PM EST. 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/interview practice. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Andrea J Lindgren Baltzell can be reached on (571)272-5918. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. /HENRY CHOE/ Primary Examiner, Art Unit 2843 #2947
Read full office action

Prosecution Timeline

Aug 08, 2023
Application Filed
Feb 04, 2026
Non-Final Rejection — §102, §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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Patent 12597890
OVER TEMPERATURE PROTECTION OF LDO CONTROLLING THE RF POWER AMPLIFIER COLLECTOR VOLTAGE
2y 5m to grant Granted Apr 07, 2026
Patent 12597893
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2y 5m to grant Granted Apr 07, 2026
Patent 12597888
ADAPTIVE STABILIZATION AND/OR PERFORMANCE OPTIMIZATION OF POWER AMPLIFIERS
2y 5m to grant Granted Apr 07, 2026
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
65%
With Interview (-27.4%)
2y 1m
Median Time to Grant
Low
PTA Risk
Based on 1339 resolved cases by this examiner. Grant probability derived from career allow rate.

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