Prosecution Insights
Last updated: October 22, 2026
Application No. 18/895,794

UART COMMUNICATIONS DEVICE WITH POWER MANAGEMENT CIRCUIT

Non-Final OA §103
Filed
Sep 25, 2024
Examiner
BORROMEO, JUANITO C
Art Unit
2184
Tech Center
2100 — Computer Architecture & Software
Assignee
Texas Instruments Incorporated
OA Round
3 (Non-Final)
76%
Grant Probability
Favorable
3-4
OA Rounds
11m
Est. Remaining
90%
With Interview

Examiner Intelligence

Grants 76% — above average
76%
Career Allowance Rate
487 granted / 638 resolved
+21.3% vs TC avg
Moderate +13% lift
Without
With
+13.3%
Interview Lift
resolved cases with interview
Typical timeline
3y 0m
Avg Prosecution
13 currently pending
Career history
659
Total Applications
across all art units

Statute-Specific Performance

§101
4.0%
-36.0% vs TC avg
§103
55.9%
+15.9% vs TC avg
§102
31.2%
-8.8% vs TC avg
§112
5.6%
-34.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 638 resolved cases

Office Action

§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 § 103 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 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 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. Claims 4 - 5 are rejected under 35 U.S.C. 103 as being unpatentable over Crompton et al. (US Pub. No. 20130092432), hereinafter referred to as Crompton in view of Choi et al. (US Pub. No. 20070180170), hereinafter referred to as Choi. As to claim 4, Crompton discloses wherein the diode includes an anode and a cathode (rectifying diode, D1, Fig. 6), wherein the capacitor is coupled to the cathode of the diode (storage capacitor, C1, coupled to the cathode of D1, Fig. 6). Choi discloses, what Crompton lacks, wherein the first UART connector is coupled to the anode of the diode (USB connector 1100 providing UART connector signal lines D+_RXD and D−_TXD connected to UART TXD/RXD ports, Fig. 8, paras. [0089]-[0090] — Choi); and wherein the first UART connector is on a surface of the device (USB connector 1100 providing an interface to an external device and carrying UART connector signal lines, Figs. 8–9, paras. [0089], [0093] — Choi). Crompton and Choi are analogous art because they are from the same problem-solving area of providing communication interfaces between electronic devices and circuitry associated with communication signal lines. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention, having the teachings of Crompton and Choi before him or her, to modify the 1-Wire communication interface of Crompton to include the UART communication interface of Choi, including UART connector signal lines coupled to UART receive and transmit ports because Choi teaches that a connector can provide an interface to an external device and that its connector signal lines are selectively connected to UART TXD and UART RXD ports through analog switch 1200. The suggestion/motivation for doing so would have been to permit Crompton's device to communicate using the known UART serial communication interface taught by Choi and thereby provide an interface capable of communicating with UART-compatible external devices. Therefore, it would have been obvious to combine Choi with Crompton to obtain the invention as specified in the instant claim. As to claim 5, the modified device of Crompton discloses the device of claim 4, wherein the first UART connector is a UART receive connector (USB connector 1100 having D−_TXD connector signal line connected to UART reception signal RXD port, Fig. 8, para. [0089] — Choi), further comprising: a UART transmit connector (USB connector 1100 having D+_RXD connector signal line connected to UART transmission signal TXD port, Fig. 8, para. [0089] — Choi); a UART receive pin (UART reception signal RXD port, Fig. 8, paras. [0089]-[0090] — Choi); and a UART transmit pin (UART transmission signal TXD port, Fig. 8, paras. [0089]-[0090] — Choi); wherein the UART receive connector is coupled to the UART receive pin (D−_TXD connector signal line coupled through analog switch 1200 to UART RXD port, Fig. 8, paras. [0089]-[0090] — Choi), and wherein the UART transmit connector is coupled to the UART circuit and to the UART transmit pin (D+_RXD connector signal line coupled through analog switch 1200 to UART TXD port provided from or to system controller, Fig. 8, paras. [0089]-[0091] — Choi). Allowable Subject Matter Claims 1, 6 – 13 and 15 - 23 allowed. The following is an examiner’s statement of reasons for allowance: the prior art, does not teach or fairly suggest: In claim 1: a power management circuit coupled to the switch or diode and to the capacitor; wherein the capacitor is configurable to charge to a line voltage of a UART data channel within a duration of a single UART bit, also claims 13 and 19. Further the combination of the above limitations with all of the other limitations in the respective independent claim is not obvious. Any comments considered necessary by applicant must be submitted no later than the payment of the issue fee and, to avoid processing delays, should preferably accompany the issue fee. Such submissions should be clearly labeled “Comments on Statement of Reasons for Allowance.” Contact Information Any inquiry concerning this communication or earlier communications from the examiner should be directed to JUANITO C BORROMEO whose telephone number is (571)270-1720. The examiner can normally be reached on Monday - Friday 9 - 5. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Henry Tsai can be reached on 5712724176. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of an application may be obtained from the Patent Application Information Retrieval (PAIR) system. Status information for published applications may be obtained from either Private PAIR or Public PAIR. Status information for unpublished applications is available through Private PAIR only. For more information about the PAIR system, see http://pair-direct.uspto.gov. Should you have questions on access to the Private PAIR system, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative or access to the automated information system, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /JUANITO C BORROMEO/ Assistant Examiner, Art Unit 2184 /HENRY TSAI/Supervisory Patent Examiner, Art Unit 2184
Read full office action

Prosecution Timeline

Sep 25, 2024
Application Filed
Feb 09, 2026
Non-Final Rejection mailed — §103
May 04, 2026
Response Filed
Jun 17, 2026
Final Rejection mailed — §103
Sep 16, 2026
Request for Continued Examination
Sep 23, 2026
Response after Non-Final Action
Oct 13, 2026
Non-Final Rejection mailed — §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
76%
Grant Probability
90%
With Interview (+13.3%)
3y 0m (~11m remaining)
Median Time to Grant
High
PTA Risk
Based on 638 resolved cases by this examiner. Grant probability derived from career allowance rate.

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