Prosecution Insights
Last updated: October 01, 2026
Application No. 18/874,392

A CONTROLLER

Non-Final OA §103
Filed
Dec 12, 2024
Priority
Jun 13, 2022 — GB 2208595.5 +1 more
Examiner
PARRIES, DRU M
Art Unit
2836
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
3Ti Energy Hubs Ltd.
OA Round
1 (Non-Final)
63%
Grant Probability
Moderate
1-2
OA Rounds
1y 5m
Est. Remaining
76%
With Interview

Examiner Intelligence

Grants 63% of resolved cases
63%
Career Allowance Rate
397 granted / 631 resolved
-5.1% vs TC avg
Moderate +13% lift
Without
With
+13.4%
Interview Lift
resolved cases with interview
Typical timeline
3y 3m
Avg Prosecution
26 currently pending
Career history
668
Total Applications
across all art units

Statute-Specific Performance

§101
0.6%
-39.4% vs TC avg
§103
67.9%
+27.9% vs TC avg
§102
23.6%
-16.4% vs TC avg
§112
6.9%
-33.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 631 resolved cases

Office Action

§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 § 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) 1-6 are rejected under 35 U.S.C. 103 as being unpatentable over Johnson, Jr (2011/0278931) and Beez et al. (2019/0359077). Regarding independent claims 1 and 4, Johnson teaches (Fig. 4) a controller (460) and method for providing phase balancing for a three phase power supply, wherein a first phase (435a) of the three phase power supply is coupled to a first electrical bus, a second phase (435b) of the three phase power supply is coupled to a second electrical bus, and a third phase (435c) of the three phase power supply is coupled to a third electrical bus, wherein the first electrical bus, the second electrical bus and the third electrical bus are coupled via an inverter (420) to a direct current, DC, bus (415) to which is coupled at least one photovoltaic, PV, panel (50), wherein the controller comprises a device for monitoring current in the first electrical bus, the second electrical bus and the third electrical bus, wherein the device is arranged to control the inverter to provide current generated by the at least one PV panel to at least one of the first electrical bus, the second electrical bus and the third electrical bus and to control current (via the inverter) to a load (20) if the current difference between the first electrical bus, the second electrical bus and/or the third electrical bus exceeds a predetermined threshold value to substantially balance the current load on the first electrical bus, the second electrical bus and the third electrical bus, wherein the load is coupled to the first electrical bus, the second electrical bus and/or the third electrical bus ([0026]-[0029]). Johnson fails to explicitly teach the load being an electric vehicle (EV) charge port connected to an EV to charge the EV battery. Beez teaches a similar three phase power supply (FIGURE) to that of Johnson. Beez teaches the three phase power supply (11, 12, 13) coupled to an EV charging port (19) to an EV (16). It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to substitute Beez’s EV charging port for charging an EV into Johnson’s invention as their load (20), since it involves a mere simple substitution of one generic load for a specific load known in the art. Regarding claims 2 and 5, Johnson teaches the device is arranged to control the inverter to provide current from a battery (40) coupled to the DC bus to at least one of the first electrical bus, the second electrical bus and the third electrical bus if the current difference between the first electrical bus, the second electrical bus and/or the third electrical bus exceeds a predetermined threshold value to substantially balance the current load on the first electrical bus, the second electrical bus and the third electrical bus ([0027]). Regarding claims 3 and 6, Johnson teaches the device is arranged to control a rectifier (410) coupled to the first electrical bus, the second electrical bus and the third electrical bus and the inverter for providing current from one of the first electrical bus, the second electrical bus and the third electrical bus to another one of the electrical buses if the current difference between the first electrical bus, the second electrical bus and/or the third electrical bus exceeds a predetermined threshold value to substantially balance the current load on the first electrical bus, the second electrical bus and the third electrical bus ([0024]). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to DRU M PARRIES whose telephone number is (571)272-8542. The examiner can normally be reached on Monday -Thursday from 9:00am to 6:00pm. The examiner can also be reached on alternate Fridays. If attempts to reach the examiner by telephone are unsuccessful, the examiner's supervisor, Rexford Barnie, can be reached on 571-272-7492. 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). DMP 7/13/2026 /DANIEL KESSIE/Primary Examiner, Art Unit 2836
Read full office action

Prosecution Timeline

Dec 12, 2024
Application Filed
Jul 22, 2026
Non-Final Rejection mailed — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12709171
WIRELESS POWER TRANSMISSION DEVICE FOR VEHICLE AND WIRELESS CHARGING METHOD
3y 4m to grant Granted Aug 18, 2026
Patent 12683390
POWER SUPPLY SYSTEM AND MOVING OBJECT
1y 6m to grant Granted Jul 14, 2026
Patent 12658696
DC POWER SUPPLY SYSTEM
1y 5m to grant Granted Jun 16, 2026
Patent 12640564
MOVING AND STORING ENERGY BETWEEN UTILITY'S ENERGY DELIVERY NETWORKS
1y 6m to grant Granted May 26, 2026
Patent 12640592
POWER SUPPLY DEVICE
1y 2m to grant Granted May 26, 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
63%
Grant Probability
76%
With Interview (+13.4%)
3y 3m (~1y 5m remaining)
Median Time to Grant
Low
PTA Risk
Based on 631 resolved cases by this examiner. Grant probability derived from career allowance rate.

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