Prosecution Insights
Last updated: April 19, 2026
Application No. 18/785,654

NINETY DEGREE HYBRID COUPLER

Non-Final OA §103§112
Filed
Jul 26, 2024
Examiner
OUTTEN, SAMUEL S
Art Unit
2843
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
STMicroelectronics
OA Round
1 (Non-Final)
79%
Grant Probability
Favorable
1-2
OA Rounds
2y 8m
To Grant
99%
With Interview

Examiner Intelligence

Grants 79% — above average
79%
Career Allow Rate
499 granted / 634 resolved
+10.7% vs TC avg
Strong +21% interview lift
Without
With
+21.0%
Interview Lift
resolved cases with interview
Typical timeline
2y 8m
Avg Prosecution
34 currently pending
Career history
668
Total Applications
across all art units

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
48.7%
+8.7% vs TC avg
§102
25.5%
-14.5% vs TC avg
§112
18.9%
-21.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 634 resolved cases

Office Action

§103 §112
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 § 112 The following is a quotation of the first paragraph of 35 U.S.C. 112(a): (a) IN GENERAL.—The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor or joint inventor of carrying out the invention. The following is a quotation of the first paragraph of pre-AIA 35 U.S.C. 112: The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor of carrying out his invention. Claim 18 is rejected under 35 U.S.C. 112(a) or 35 U.S.C. 112 (pre-AIA ), first paragraph, as failing to comply with the written description requirement. The claim(s) contains subject matter which was not described in the specification in such a way as to reasonably convey to one skilled in the relevant art that the inventor or a joint inventor, or for applications subject to pre-AIA 35 U.S.C. 112, the inventor(s), at the time the application was filed, had possession of the claimed invention. Claim 18 cites the presence of a patterned shield including a plurality of arms positioned in a proximity of the coupler, but there is no description of the shield in the specification. As the specification lacks any description of the plurality of arms of the patterned shield or what constitutes “a proximity of the coupler,” claim 18 lacks written description, and further lacks proper enablement. The following is a quotation of 35 U.S.C. 112(b): (b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Claim 20 is rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. Claim 19 recites the limitation "the patterned shield" in line 1. There is insufficient antecedent basis for this limitation in the claim. Claim 19 depends on claim 1, which does not cite a “patterned shield,” as cited in claim 18. For examination purposes, claim 19 will be considered to be dependent upon claim 18. 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) 1-17 is/are rejected under 35 U.S.C. 103 as being unpatentable over Pozdeev (US Patent 6636126) in view of Knopik et al. (US PGPub 20190245258) As per claim 1: Pozdeev discloses in Figs. 1-2: A coupler (four port hybrid 100A) comprising: a first assembly having: an input unit element (isolated transposition portion 40), an intermediate unit element (isolated transposition portion 50), and an output unit element (isolated transposition element 30), where each unit element includes: a first coil and a second coil (electrical conductors 32/34 or 42/44 or 52/54) arranged to generally have a cross over shape (as seen in Fig. 1); a first input terminal corresponding to an input node of the first coil; a second input terminal corresponding to an output node of the second coil; a first output terminal corresponding to an output node of the first coil; and a second output terminal corresponding to an input node of the second coil (each isolated transposition portion comprises two input terminals and two output terminals, wherein the respective nodes may be labeled as desired); wherein: the first input terminal of the intermediate unit element is coupled to the first output terminal of the input unit element, the second input terminal of the intermediate unit element is coupled to the second output terminal of the input unit element, the first output terminal of the intermediate unit element is coupled to the first input terminal of the output unit element, and the second output terminal of the intermediate unit element is coupled to the second input terminal of the output unit element (each first input and output terminal may be designated to be connected along the path between either Port P2 to Port P1 or port P3 to port P4, with the second input and output terminals being connected along the path of the other set of ports), and wherein the input unit element is spatially positioned between the intermediate unit element and the output unit element (as seen in Fig. 1). Pozdeev does not disclose: where each unit element includes: a first coil and a second coil arranged to generally have an “H” shape. Knopik et al. discloses in Figs. 4-5 & 7-8: A cross-over coupling stage of a hybrid coupler comprising a first coil (metal track PM11) and a second coil (metal track PM12) arranged to generally have an “H” shape. At the time of filing, it would have been obvious to one of ordinary skill in the art to use the cross-over coupling stages of Knopik et al. for the isolated transposition elements as an art-recognized alternative/equivalent cross-over/transposition circuit that further provides the benefit of providing a desired level of capacitive and inductive values as taught by Knopik et al. ([0062]) As per claim 2: Pozdeev discloses in Figs. 1-2: the first input terminal of the input unit element is a first input of the first assembly, and the second input terminal of the input unit element is a second input of the first assembly (the first and second input terminals of the input unit element are part of the input terminals of the assembly by being connected to ports P2 & P3, wherein the hybrid of Pozdeev is a reciprocal element with terminals able to function as both input and output terminals). As per claim 3: Pozdeev discloses in Figs. 1-2: the first output terminal of the output unit element is a first output of the first assembly, and the second output terminal of the output unit element is a second output of the first assembly (the first and second output terminals of the output unit element are part of the input terminals of the assembly by being connected to ports P1 & P4, wherein the hybrid of Pozdeev is a reciprocal element with terminals able to function as both input and output terminals). As per claim 4: Pozdeev discloses in Figs. 1-2: the first input of the first assembly is configured to receive a first signal, and the second input of the first assembly is configured to receive a second signal that is a phase-shifted version of the first signal (being a four-port hybrid coupler, ports P2 & P3 are configured to be able to receive said first and second signals, as both ports are electrical ports for an electrical circuit; further, applying a phase shift to the second signal is an intended use, and is not a claimed difference in the structure of the circuit, such that a phase-shifted version of the first signal may be applied to the second input without conflicting with the limitations of the claims). As per claim 5: Pozdeev discloses in Figs. 1-2: the second signal is the first signal as phase-shifted by ninety degrees (being a four-port hybrid coupler, ports P2 & P3 are configured to be able to receive said first and second signals, wherein the second signal is phase-shifted by ninety degrees, as both ports are electrical ports for an electrical circuit; further, applying a phase shift to the second signal is an intended use and does not further limit the claimed coupler). As per claim 6: Pozdeev discloses in Figs. 1-2: the second signal is the first signal as phase-shifted by ninety degrees (being a four-port hybrid coupler, ports P2 & P3 are configured to be able to receive said first and second signals, wherein the second signal is phase-shifted by ninety degrees, as both ports are electrical ports for an electrical circuit; further, applying a phase shift to the second signal is an intended use and does not further limit the claimed coupler). As per claim 7: Pozdeev discloses in Figs. 1-2: the first input terminal of the input unit element is a first input of the first assembly, and the second input terminal of the input unit element is a second input of the first assembly (the first and second input terminals of the input unit element are part of the input terminals of the assembly by being connected to ports P2 & P3, wherein the hybrid of Pozdeev is a reciprocal element with terminals able to function as both input and output terminals), Pozdeev does not disclose: the coupler includes at least one second assembly identical to the first assembly, the first output of the first assembly is coupled to a first input of the second assembly, and the second output of the first assembly is coupled to a second input of the second assembly Knopik et al. discloses in Figs. 6 & 9-10, the coupling in series of multiple modules to obtain desired capacitive and inductive values ([0062]). At the time of filing, it would have been obvious to one of ordinary skill in the art for the coupler to comprise at least one second assembly identical to the first assembly, the first output of the first assembly is coupled to a first input of the second assembly, and the second output of the first assembly is coupled to a second input of the second assembly to provide the benefit of obtaining desired capacitive and inductive values as taught by Knopik et al. ([0062]) As per claim 8: Pozdeev does not disclose: the unit elements all have the same dimensions. Knopik et al. discloses in Figs. 4-5 & 7-8: A cross-over coupling stage of a hybrid coupler comprising a first coil (metal track PM11) and a second coil (metal track PM12) arranged to generally have an “H” shape, wherein the size and shape of the coupling stage is controlled as a design parameter for determining the inductive and capacitive values of the coupling stage ([0025-0026]). At the time of filing, it would have been obvious to one of ordinary skill in the art for the unit elements to all have the same dimensions as the dimensions are design parameters that provide the benefit of determining the inductive and capacitive values of the coupling stage as taught by Knopik et al. ([0025-0026]) and further as one of a limited number of options for the comparative dimensions of the cross-over coupling stages (same or different). As per claim 9: Pozdeev does not disclose: the unit elements have different dimensions. Knopik et al. discloses in Figs. 4-5 & 7-8: A cross-over coupling stage of a hybrid coupler comprising a first coil (metal track PM11) and a second coil (metal track PM12) arranged to generally have an “H” shape, wherein the size and shape of the coupling stage is controlled as a design parameter for determining the inductive and capacitive values of the coupling stage ([0025-0026]). At the time of filing, it would have been obvious to one of ordinary skill in the art for the unit elements to all have different dimensions as the dimensions are design parameters that provide the benefit of determining the inductive and capacitive values of the coupling stage as taught by Knopik et al. ([0025-0026]) and further as one of a limited number of options for the comparative dimensions of the cross-over coupling stages (same or different). As per claim 10: Pozdeev discloses in Figs. 1-2: the unit elements are all placed in a same plane (as seen in related Fig. 5). As per claim 11: Pozdeev discloses in Figs. 1-2: the unit elements are all placed in different planes (as seen in related Fig. 5, wherein the unit elements are placed in different planes oriented in the horizontal direction and the direction normal to the plane of the figure). As per claim 12: Pozdeev discloses in Figs. 6: The respective transmission lines and cross-over units may be placed on separate layers vertically to form a step arrangement of the cross-over units (30 & 40). Pozdeev does not disclose in Figs. 1-2: the unit elements are placed in a stepped arrangement. At the time of filing, it would have been obvious to one of ordinary skill in the art to form the coupler of the combination on separate layers vertically as a possible configuration as shown by Pozdeev to provide the benefit of alternative layouts able with different geometries. As a consequence of the configuration, the unit elements are placed in a stepped arrangement. As per claim 13: Pozdeev does not disclose in Figs. 1-2: the first and second coils of the unit elements are windings having a generally rectangular shape. Knopik et al. discloses in Figs. 4-5 & 7-8: the first and second coils of the unit elements are windings having a generally rectangular shape (as seen in Figs. 4-5). As a consequence of the combination, the first and second coils of the unit elements are windings having a generally rectangular shape. As per claim 14: Pozdeev does not disclose in Figs. 1-2: the first and second coils of the unit elements are windings having a generally zigzag shape. Knopik et al. discloses in Figs. 4-5 & 7-8: the first and second coils of the unit elements are windings having a generally zigzag shape. As a consequence of the combination, the first and second coils of the unit elements are windings having a generally zigzag shape. As per claim 15: Pozdeev discloses in Figs. 1-2: the coupler is a reversible coupler (only comprises passive, non-directional elements). As per claim 16: Pozdeev does not disclose in Figs. 1-2: the first coil and the second coil each include: a plurality of arms; and a bridge between the plurality of arms. Knopik et al. discloses in Figs. 4-5 & 7-8: the first coil and the second coil each include: a plurality of arms (the region from BM11 to BM12 & the region from BM21 to BM22); and a bridge (area between arms in crossing region RC) between the plurality of arms. As a consequence of the combination, the first coil and the second coil each include: a plurality of arms; and a bridge between the plurality of arms. As per claim 17: Pozdeev does not disclose in Figs. 1-2: the bridge is perpendicular to the plurality of arms, and the bridge centered relative to the plurality of arms, and the plurality of arms each have a length that is greater than a width of the bridge. Knopik et al. discloses in Figs. 4-5 & 7-8: the bridge is perpendicular to the plurality of arms, and the bridge centered relative to the plurality of arms (centered on axis of symmetry ASM2), and the plurality of arms each have a length that is greater than a width of the bridge (each arm extends passed the bridge). As a consequence of the combination, the bridge is perpendicular to the plurality of arms, and the bridge centered relative to the plurality of arms, and the plurality of arms each have a length that is greater than a width of the bridge. . Claim(s) 18-19 (as best understood) is/are rejected under 35 U.S.C. 103 as being unpatentable over The resultant combination of Pozdeev (US Patent 6636126) in view of Knopik et al. (US PGPub 20190245258) as applied to claim 1 above, and further in view of Da Silveria et al. (US PGPub 20230309215) The resultant combination discloses the apparatus of claim 1, as rejected above. As per claim 18: The resultant combination does not disclose a patterned shield including a plurality of arms positioned in a proximity of the coupler. Da Silveria et al. discloses in Figs. 1-4: The use of a patterned shield (ground planes 20 & 40, [0036]) including a plurality of arms (length sides) positioned in a proximity of a coupler (abstract). At the time of filing, it would have been obvious to one of ordinary skill in the art to provide a patterned shield including a plurality of arms such as that of Da Silveria et al. around a coupler such as that of The resultant combination to provide the benefit of preventing RF leakage, as taught by Da Silveria et al. ([0036]) As per claim 19: The resultant combination does not disclose the patterned shield is located at one or more levels below, above or around the coupler. Da Silveria et al. discloses in Figs. 1-4: The use of a patterned shield (ground planes 20 & 40, [0036]) including a plurality of arms (length sides) around a coupler (abstract). As a consequence of the combination of claim 18, the patterned shield is located at one or more levels below, above or around the coupler. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to SAMUEL S OUTTEN whose telephone number is (571)270-7123. The examiner can normally be reached M-F: 9:30AM-6:00PM. 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) 272-1988. 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. /Samuel S Outten/ Primary Examiner, Art Unit 2843
Read full office action

Prosecution Timeline

Jul 26, 2024
Application Filed
Jan 30, 2026
Non-Final Rejection — §103, §112 (current)

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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
79%
Grant Probability
99%
With Interview (+21.0%)
2y 8m
Median Time to Grant
Low
PTA Risk
Based on 634 resolved cases by this examiner. Grant probability derived from career allow rate.

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