Prosecution Insights
Last updated: April 19, 2026
Application No. 18/364,502

METHODS AND APPARATUS TO REDUCE INRUSH CURRENT IN UNIVERSAL SERIAL BUS CIRCUITS AND SYSTEMS

Non-Final OA §102§103
Filed
Aug 03, 2023
Examiner
ROSARIO BENITEZ, GUSTAVO A
Art Unit
2838
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Texas Instruments Incorporated
OA Round
3 (Non-Final)
81%
Grant Probability
Favorable
3-4
OA Rounds
2y 9m
To Grant
99%
With Interview

Examiner Intelligence

Grants 81% — above average
81%
Career Allow Rate
597 granted / 733 resolved
+13.4% vs TC avg
Strong +25% interview lift
Without
With
+25.3%
Interview Lift
resolved cases with interview
Typical timeline
2y 9m
Avg Prosecution
39 currently pending
Career history
772
Total Applications
across all art units

Statute-Specific Performance

§101
0.5%
-39.5% vs TC avg
§103
49.3%
+9.3% vs TC avg
§102
28.1%
-11.9% vs TC avg
§112
21.0%
-19.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 733 resolved cases

Office Action

§102 §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 allowance or after an Office action under Ex Parte Quayle, 25 USPQ 74, 453 O.G. 213 (Comm'r Pat. 1935). 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, prosecution in this application has been reopened pursuant to 37 CFR 1.114. Applicant's submission filed on 12/19/2025 has been entered. 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 Objections Claims 7, 9, 10, 12-13, 16 and 20 are objected to because of the following informalities: Claims 7 and 9 each instance where it mentions first or second FETs this should be change to first or second transistors. Claim 10 “the signal” should be “a signal”. Claims 12-13 “the second devices” should be “a second device”. Claims 16 and 20 “the first device” this should be “a first device”. Appropriate correction is required. Claim Rejections - 35 USC § 102 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. 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, 4, 9-11, 18-19 and 21 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Motoki US 2016/011880. Regarding Claim 1, Motoki teaches (Figures 2-5) An apparatus (Fig. 2) comprising: a power supply having an input and an output (102, input and output terminals); a transistor (sw1) coupled between a voltage bus (Vbus) and a power terminal (Vout node), the power terminal coupled to the output of the power supply (102); and a controller (110, 104 and 140) having first and second outputs (input terminals and output terminals of the controller), the first output coupled to the input of the power supply (with 104) , the second output coupled to a control terminal of the transistor (with 110), wherein the controller is configurable to, responsive to a state of the voltage bus (Vbus), turn off the transistor (See fig. 4 times φ4- φ6) and cause the power supply to supply power to the power terminal (see value of Vout). (For Example: Par. 43-56 and 60-68) Regarding Claim 4, Motoki teaches (Figures 2-5) further comprising a capacitor coupled to the power terminal (c1 or c2). Regarding Claim 9, Motoki teaches (Figures 2-5) wherein the FET is an n-channel FET (at sw1, par. 45). Regarding Claim 10, Motoki teaches (Figures 2-5) wherein the controller (104, 110 and 140) includes a communication input (com), the signal is a first signal (with 113), and the controller is configurable to negotiate, over the communication input, a contract with another device (par. 50, with a connected device); and responsive to negotiating the contract, turn on the transistor and cause the power supply to supply power to the power terminal (see fig. 4, φ3). (For Example: Par. 43-56 and 60-68) Regarding Claim 11, Motoki teaches (Figures 2-5) a system (Fig. 2) comprising: a power supply (102) having an input and an output (input and output terminals of 102); a transistor (sw1) coupled between a voltage bus (Vbus node) and a power terminal (vout bus), the power terminal coupled to the output of the power supply(102); a connector (108) coupled to the voltage bus: a capacitor (C1) coupled to the power terminal; a controller (104, 140 and 110) having an input coupled to the connector (with 113) and having first and second outputs (with OUT and 104), the first output coupled to the input of the power supply (with 104), the second output coupled to a control terminal of the transistor (sw1 control terminal), wherein the controller is configurable to, responsive to a state of the voltage bus (Vbus), turn off the transistor (See fig. 4 times φ4- φ6) and cause the power supply to supply power to the power terminal (see value of Vout). (For Example: Par. 43-56 and 60-68) Regarding Claim 18, Motoki teaches (Figures 2-5) wherein the connector (108) is a universal serial bus Type-C connector that is compatible with universal serial bus Type-C power delivery applications (par. 73). Regarding Claim 19, Motoki teaches (Figures 2-5) wherein the transistor (sw1) is an n-channel field- effect transistor (par. 45). Regarding Claim 21, Motoki teaches (Figures 2-5) wherein the controller (104, 140 and 110) is configurable to, responsive to a voltage at the power terminal (Vout) reaching a threshold voltage (OCP condition), cause the power supply to stop supplying power to the power terminal (par. 53-56). 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 5 is/are rejected under 35 U.S.C. 103 as being unpatentable over Motoki in view of Chen US 10108243. Regarding Claim 2, Motoki teaches (Figures 2-5) further comprising a connector (108) coupled to the voltage bus (Vbus) and coupled to an input of the controller (with 113). (For Example: Par. 43-56 and 60-68) Motoki does not teach the controller configurable to receive an indication at the input that an external device is not connected to the voltage bus via the connector, and cause the power supply to supply power to the power terminal. Chen teaches (Figure 3) the controller (102) configurable to receive an indication at the input that an external device is not connected (see Col. 2 lines 60-67 and Col 3 lines 1-12) to the voltage bus (at 108) via the connector (usb connector), and cause the power supply to supply power to the power terminal (see Col. 2 lines 60-67 and Col 3 lines 1-12). It would have been obvious to one of ordinary skill in the art before the effective filling date of the claimed invention to modify the circuit of Motoki to include the controller configurable to receive an indication at the input that an external device is not connected to the voltage bus via the connector, and cause the power supply to supply power to the power terminal, as taught by Chen to reduce system power consumption. Regarding Claim 5, Motoki teaches (Figures 2-5) wherein the connector (108) is a universal serial bus (USB) Type-C connector (par. 73). Claim(s) 6 and 8 is/are rejected under 35 U.S.C. 103 as being unpatentable over Motoki in view of Chen and further in view of Lim US 2021/0399561. Regarding Claims 6 and 8, Motoki teaches (Figures 2-5) wherein the connector (108) is a first USB Type- C connector (par. 71), the transistor is a first transistor (sw1), the controller has a third output (another output), and the voltage bus is a first voltage bus (Vbus). (For Example: Par. 43-56 and 60-68) Motoki as modified does not teach the apparatus further comprising: a second voltage bus: a second USB Type-C connector coupled to the second voltage bus; and a second transistor coupled between the second voltage bus and the power terminal, a control terminal of the second transistor coupled to the third output of the controller; wherein the second connector is compatible with USB Type-C power delivery applications. Lim teaches (Figures 2) the controller (102) the apparatus further comprising: a second voltage bus (bus for 250): a second USB Type-C connector (at 210, par. 30) coupled to the second voltage bus; and a second transistor (250) coupled between the second voltage bus and the power terminal (at 230 node), a control terminal of the second transistor coupled to the third output of the controller (270); wherein the second connector is compatible with USB Type-C power delivery applications(par. 30 and 91). (For Example: Par. 62-65 and 86-91) It would have been obvious to one of ordinary skill in the art before the effective filling date of the claimed invention to modify the circuit of Motoki to include the apparatus further comprising: a second voltage bus: a second USB Type-C connector coupled to the second voltage bus; and a second transistor coupled between the second voltage bus and the power terminal, a control terminal of the second transistor coupled to the third output of the controller, as taught by Lim to prevent damage due to power from external electronic devices. Claim(s) 13-15 is/are rejected under 35 U.S.C. 103 as being unpatentable over Motoki in view of Balakrishnan US 2018/0219399. Regarding Claim 13, Motoki teaches (Figures 2-5) the system. Motoki does not teach further comprising: a second device; and an adaptor coupling the second device to the connector. Balakrishnan teaches (Figures 1-4) further comprising: a second device (114); and an adaptor (112, 110 and 108) coupling the second device to the connector (106 or 104). (For Example: Par. 23) It would have been obvious to one of ordinary skill in the art before the effective filling date of the claimed invention to modify the circuit of Motoki to include further comprising: a second device; and an adaptor coupling the second device to the connector, as taught by Balakrishnan to enable the system to be connected to different types of load devices. Regarding Claim 14, Motoki teaches (Figures 2-5) wherein the connector (108) is a universal serial bus (USB) Type-C connector (par. 73). Regarding Claim 15, Motoki teaches (Figures 2-5) the system. Motoki does not teach wherein: the connector is a female connector; the second device is a USB Type-A device; and the adaptor is a USB-Type A to USB Type-C adaptor. Balakrishnan teaches (Figures 1-4) wherein: the connector (104) is a female connector; the second device is a USB Type-A device (see fig. 1); and the adaptor is a USB-Type A to USB Type-C adaptor (see fig. 1). (For Example: Par. 23) It would have been obvious to one of ordinary skill in the art before the effective filling date of the claimed invention to modify the circuit of Motoki to include wherein: the connector is a female connector; the second device is a USB Type-A device; and the adaptor is a USB-Type A to USB Type-C adaptor, as taught by Balakrishnan to enable the system to be connected to different types of load devices. Claim(s) 16-17 is/are rejected under 35 U.S.C. 103 as being unpatentable over Motoki in view of Lim US 2021/0399561. Regarding Claims 16-17, Motoki teaches (Figures 2-5) wherein the connector (108) is a first USB Type- C connector (par. 71), the transistor is a first transistor (sw1), the controller has a third output (another output), and the voltage bus is a first voltage bus (Vbus). (For Example: Par. 43-56 and 60-68) Motoki does not teach the apparatus further comprising: a second voltage bus: a second USB Type-C connector coupled to the second voltage bus; and a second transistor coupled between the second voltage bus and the power terminal, a control terminal of the second transistor coupled to the third output of the controller; wherein the second connector is compatible with USB Type-C power delivery applications. Lim teaches (Figures 2) the controller (102) the apparatus further comprising: a second voltage bus (bus for 250): a second USB Type-C connector (at 210, par. 30) coupled to the second voltage bus; and a second transistor (250) coupled between the second voltage bus and the power terminal (at 230 node), a control terminal of the second transistor coupled to the third output of the controller (270); wherein the second connector is compatible with USB Type-C power delivery applications(par. 30 and 91). (For Example: Par. 62-65 and 86-91) It would have been obvious to one of ordinary skill in the art before the effective filling date of the claimed invention to modify the circuit of Motoki to include the apparatus further comprising: a second voltage bus: a second USB Type-C connector coupled to the second voltage bus; and a second transistor coupled between the second voltage bus and the power terminal, a control terminal of the second transistor coupled to the third output of the controller, as taught by Lim to prevent damage due to power from external electronic devices. 8. Claim(s) 20 is/are rejected under 35 U.S.C. 103 as being unpatentable over Motoki in view of Ripoll US 2015/0239358. Regarding Claim 20, Motoki teaches (Figures 2-5) wherein the capacitor is a first capacitor (C1), and the first device (connected to 108) further includes a second capacitor (C2) having a terminal coupled to the voltage bus (Vbus.) Motoki does not teach having a capacitance that is at least ten times smaller that a capacitance of the first capacitor. Ripoll teaches (Figures 1-4) having a capacitance (7) that is at least ten times smaller that a capacitance of the first capacitor (21). (For Example: Par. 72) It would have been obvious to one of ordinary skill in the art before the effective filling date of the claimed invention to modify the circuit of Motoki to include having a capacitance that is at least ten times smaller that a capacitance of the first capacitor, as taught by Ripoll to enable the system to obtain a good energy performance for the system. Claim(s) 22 is/are rejected under 35 U.S.C. 103 as being unpatentable over Motoki in view of Dahstestani US 10454360 (Hein Dash). Regarding Claim 22, Motoki teaches (Figures 2-5) a diode of a transistor(at sw1). Motoki does not teach wherein the threshold voltage is based on a reverse bias voltage of a diode. Dash teaches (Figures 1-4) wherein the threshold voltage (Vout) is based on a reverse bias voltage of a diode (244-256). (For Example: Col. 4 lines 41-67 and Col. 5 lines 1-10) It would have been obvious to one of ordinary skill in the art before the effective filling date of the claimed invention to modify the circuit of Motoki to include wherein the threshold voltage is based on a reverse bias voltage of a diode, as taught by Dash to provide protection to the system during transient conditions. Allowable Subject Matter Claims 7 and 12 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. Reasons for Indicating Allowable Subject Matter The following is an examiner’s statement of reasons for indicating Allowable Subject Matter: Claim 7; prior art of record fails to disclose either by itself or in combination: “…further comprising a capacitor having a terminal directly connected to the second terminals of the first and second FETs, the capacitor capable of holding enough charge to reverse bias a first parasitic body diode of the first FET and a second parasitic body diode of the second FET.” Claim 12; prior art of record fails to disclose either by itself or in combination: “… wherein the controller is configurable to cause the power supply to stop supplying power to the power terminal responsive to a first voltage at the power terminal exceeding a threshold, the threshold being based on a second voltage of the second device connected to the connector, and a reverse bias voltage of a diode of the transistor.” These features taken alone or in combination are neither disclosed nor suggested by the prior art of record. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to GUSTAVO A ROSARIO-BENITEZ whose telephone number is (571)270-7888. The examiner can normally be reached M-F 9AM-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, MONICA LEWIS can be reached at 5712721838. 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. /GUSTAVO A ROSARIO-BENITEZ/ Primary Examiner, Art Unit 2838
Read full office action

Prosecution Timeline

Aug 03, 2023
Application Filed
Nov 26, 2024
Non-Final Rejection — §102, §103
Jan 09, 2025
Response Filed
Mar 10, 2025
Final Rejection — §102, §103
Jun 16, 2025
Request for Continued Examination
Jun 17, 2025
Response after Non-Final Action
Sep 08, 2025
Examiner Interview (Telephonic)
Dec 19, 2025
Request for Continued Examination
Jan 12, 2026
Response after Non-Final Action
Feb 04, 2026
Non-Final Rejection — §102, §103 (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

3-4
Expected OA Rounds
81%
Grant Probability
99%
With Interview (+25.3%)
2y 9m
Median Time to Grant
High
PTA Risk
Based on 733 resolved cases by this examiner. Grant probability derived from career allow rate.

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