Prosecution Insights
Last updated: August 14, 2026
Application No. 18/752,223

MULTI-OCTAVE ANTENNA ELEMENT

Final Rejection §102§103
Filed
Jun 24, 2024
Examiner
NGUYEN, HOANG V
Art Unit
2845
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
THE AEROSPACE Corporation
OA Round
2 (Final)
91%
Grant Probability
Favorable
3-4
OA Rounds
0m
Est. Remaining
97%
With Interview

Examiner Intelligence

Grants 91% — above average
91%
Career Allowance Rate
1271 granted / 1398 resolved
+22.9% vs TC avg
Moderate +6% lift
Without
With
+6.3%
Interview Lift
resolved cases with interview
Fast prosecutor
2y 0m
Avg Prosecution
13 currently pending
Career history
1408
Total Applications
across all art units

Statute-Specific Performance

§101
1.3%
-38.7% vs TC avg
§103
47.1%
+7.1% vs TC avg
§102
35.9%
-4.1% vs TC avg
§112
10.1%
-29.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1398 resolved cases

Office Action

§102 §103
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 10 is rejected under 35 U.S.C. 102(a)(1) as being anticipated by Zhang et al (CN 105680133B), hereinafter Zhang. Regarding claim 10, Zhang (Figures 1 and 2) teaches an apparatus comprising a ridge waveguide 3 comprising a waveguide input (bottom of waveguide) configured to receive a signal from an external source (stripline 8 connecting to external source), wherein the ridge waveguide configured to propagate the signal upward and out of the apparatus, and the ridge waveguide is located below a ground plane 1 (para [0017], surface 1 being metallized ground layer). 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. Claims 13 and 14 are rejected under 35 U.S.C. 103 as being unpatentable over Zhang. Regarding claims 13 and 14, Zhang fails to further teach a balun proximate to the waveguide input is configured to convert an un-balanced transmission line into a balanced transmission line, wherein the balun is formed by a combination of the waveguide input and the ridge waveguide. The use of a balun to convert an un-balanced transmission line into a balanced transmission line is well known in the antenna art. Thus it would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to provide a balun proximate to the waveguide input for impedance matching purposes which reduces noise and interference to exhibit optimum antenna performance. Allowable Subject Matter Claims 11, 12 and 15-17 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. Claims 1-9 and 18-21 are allowed. The following is a statement of reasons for the indication of allowable subject matter: Regarding claim 11, Zhang fails to further teach a pair of ridges placed above the ground plane and below a pair of corresponding spherical elements. Claim 12 would have been found allowable for at least the reason for depending on claim 11. Regarding claim 15, Zhang fails to further teach that the pair of ridges form a gap, allowing a conductor to cross over the one of the pair of ridges into another one of the pair of ridges. Regarding claim 16, Zhang fails to further teach a pair of spherical elements and the pair of ridges transform 50 Ohm impedance of the apparatus to 377 Ohm impedance of free space. Claim 17 would have been found allowable for at least the reason for depending on claim 16. Reasons for indicating allowable subject matter for claims 1-9 and 18-21 were provided in the previous Office action. Conclusion Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to HOANG V NGUYEN whose telephone number is (571)272-1825. The examiner can normally be reached Monday-Friday 8am-5pm. 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, Dimary Lopez can be reached at (571) 270-7983. 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. /HOANG V NGUYEN/Primary Examiner, Art Unit 2845
Read full office action

Prosecution Timeline

Jun 24, 2024
Application Filed
Mar 02, 2026
Non-Final Rejection mailed — §102, §103
May 28, 2026
Response Filed
Aug 04, 2026
Final Rejection mailed — §102, §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12706376
CLAMPING APPARATUS FOR ANTENNA DEVICE
2y 8m to grant Granted Aug 11, 2026
Patent 12700679
ANTENNA APPARATUS
2y 2m to grant Granted Aug 04, 2026
Patent 12695185
CLAMPING APPARATUS FOR ANTENNA
1y 7m to grant Granted Jul 28, 2026
Patent 12683291
QUADRI-POLARIZATION DIVERSITY ANTENNA SYSTEM
2y 3m to grant Granted Jul 14, 2026
Patent 12683278
INVERTED F-SHAPED ANTENNA FOR HEARING INSTRUMENTS
1y 11m to grant Granted Jul 14, 2026
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
91%
Grant Probability
97%
With Interview (+6.3%)
2y 0m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 1398 resolved cases by this examiner. Grant probability derived from career allowance rate.

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