Prosecution Insights
Last updated: October 04, 2026
Application No. 18/901,536

SYSTEMS AND METHODS FOR PHASE IDENTIFICATION USING RELATIVE PHASE ANGLE MEASUREMENTS

Non-Final OA §DP
Filed
Sep 30, 2024
Priority
Jul 02, 2020 — provisional 63/047,442 +2 more
Examiner
JAVAID, JAMAL
Art Unit
Tech Center
Assignee
Aclara Technologies LLC
OA Round
1 (Non-Final)
88%
Grant Probability
Favorable
1-2
OA Rounds
7m
Est. Remaining
94%
With Interview

Examiner Intelligence

Grants 88% — above average
88%
Career Allowance Rate
880 granted / 994 resolved
+28.5% vs TC avg
Moderate +6% lift
Without
With
+5.8%
Interview Lift
resolved cases with interview
Typical timeline
2y 7m
Avg Prosecution
34 currently pending
Career history
1026
Total Applications
across all art units

Statute-Specific Performance

§101
7.4%
-32.6% vs TC avg
§103
62.1%
+22.1% vs TC avg
§102
11.6%
-28.4% vs TC avg
§112
13.1%
-26.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 994 resolved cases

Office Action

§DP
DETAILED ACTION Status of Case The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . This Office Action is in response to the claims filed on 9/30/2024 Claims 1-20 are pending. Information Disclosure Statement The information disclosure statements (IDS) filed on 10/30/2024, 1/13/2025, and 6/5/2025 have been considered by Examiner. Double Patenting The nonstatutory double patenting rejection is based on a judicially created doctrine grounded in public policy (a policy reflected in the statute) so as to prevent the unjustified or improper timewise extension of the “right to exclude” granted by a patent and to prevent possible harassment by multiple assignees. A nonstatutory double patenting rejection is appropriate where the conflicting claims are not identical, but at least one examined application claim is not patentably distinct from the reference claim(s) because the examined application claim is either anticipated by, or would have been obvious over, the reference claim(s). See, e.g., In re Berg, 140 F.3d 1428, 46 USPQ2d 1226 (Fed. Cir. 1998); In re Goodman, 11 F.3d 1046, 29 USPQ2d 2010 (Fed. Cir. 1993); In re Longi, 759 F.2d 887, 225 USPQ 645 (Fed. Cir. 1985); In re Van Ornum, 686 F.2d 937, 214 USPQ 761 (CCPA 1982); In re Vogel, 422 F.2d 438, 164 USPQ 619 (CCPA 1970); In re Thorington, 418 F.2d 528, 163 USPQ 644 (CCPA 1969). A timely filed terminal disclaimer in compliance with 37 CFR 1.321(c) or 1.321(d) may be used to overcome an actual or provisional rejection based on nonstatutory double patenting provided the reference application or patent either is shown to be commonly owned with the examined application, or claims an invention made as a result of activities undertaken within the scope of a joint research agreement. See MPEP § 717.02 for applications subject to examination under the first inventor to file provisions of the AIA as explained in MPEP § 2159. See MPEP § 2146 et seq. for applications not subject to examination under the first inventor to file provisions of the AIA . A terminal disclaimer must be signed in compliance with 37 CFR 1.321(b). The filing of a terminal disclaimer by itself is not a complete reply to a nonstatutory double patenting (NSDP) rejection. A complete reply requires that the terminal disclaimer be accompanied by a reply requesting reconsideration of the prior Office action. Even where the NSDP rejection is provisional the reply must be complete. See MPEP § 804, subsection I.B.1. For a reply to a non-final Office action, see 37 CFR 1.111(a). For a reply to final Office action, see 37 CFR 1.113(c). A request for reconsideration while not provided for in 37 CFR 1.113(c) may be filed after final for consideration. See MPEP §§ 706.07(e) and 714.13. The USPTO Internet website contains terminal disclaimer forms which may be used. Please visit www.uspto.gov/patent/patents-forms. The actual filing date of the application in which the form is filed determines what form (e.g., PTO/SB/25, PTO/SB/26, PTO/AIA /25, or PTO/AIA /26) should be used. A web-based eTerminal Disclaimer may be filled out completely online using web-screens. An eTerminal Disclaimer that meets all requirements is auto-processed and approved immediately upon submission. For more information about eTerminal Disclaimers, refer to www.uspto.gov/patents/apply/applying-online/eterminal-disclaimer. Claims 1-6 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-16 of U.S. Patent No. 11,699,904. Although the claims at issue are not identical, they are not patentably distinct from each other because all of the limitations of the claims of the instant application are recited in the noted claims of the 11,699,904 patent (see correspondence table below): Instant Application U.S. Patent No. 11,699,904 1. A system for determining a phase of one or more nodes coupled to an electrical distribution system, the system comprising: a device in electronic communication with one or more node devices connected to a power distribution network and having a memory and one or more electronic processors configured to: transmit a synchronization message; receive a message from a first node device of the one or more node devices, wherein the message includes a time value indicating a time period between a receipt of the transmitted synchronization message and a detected zero crossing; compare the time period against previous time periods received from at least a second node device with a known phase connection; and determine a phase of the first node device based on the comparison. 2. The system of claim 1, wherein the one or more node devices are electrically coupled to a power distribution system and comprise a memory and one or more electronic processors configured to: receive the synchronization message; determine a zero crossing of an AC waveform of the power distribution system occurring subsequent to receiving the synchronization message; calculate the time period between the receipt of the synchronization message and the determined zero crossing; generate the message comprising the time period; and transmit the message. 3. The system of claim 2, wherein message further comprises a node identification value, and a synchronization ID value; and wherein the synchronization ID value is associated with the received synchronization message. 4. The system of claim 1, wherein the synchronization message is transmitted using a wireless communication protocol. 5. The system of claim 4, wherein the wireless communication protocol is an RF communication protocol. 6. The system of claim 1, wherein the one or more node devices are selected from a group consisting of electronic metering devices, sensors, and distribution automation devices. 7. The system of claim 1, wherein the one or more electronic processors of the device are further configured to transmit the determined phase to the first node. 8. A method for determining a phase at a node device connected to a power distribution network, the method comprising: transmitting a first synchronization message to one or more node devices; receiving a data message from a first node device of the one or more node devices, wherein the data message includes a duration value; comparing the duration value received from the first node device against duration values received from at least a second node devices with a known phase connection; determining a phase of the first node device based on the comparison. 9. The method of claim 8, wherein the method is performed by a central computing device. 10. The method of claim 8, wherein the method is performed by a plurality of gateway devices in electronic communication with the one or more nodes. 11. The method of claim 8, wherein determining the phase of the first node device comprises determining a relationship of the duration value of the first node device to the durational values received from the at least one node device with a known phase connection, and wherein the phase of the first node device is determined to be one of a same phase, a +120° offset phase, and a −120° offset phase based on the determined relationship. 12. The method of claim 8, further comprising: receiving, at the first node device, the first synchronization message; determining, at the first node device, a zero crossing of an AC waveform of the power distribution network occurring immediately subsequent to receiving the first synchronization message; calculating, at the first node device, the duration value between the receipt of the first synchronization message and the determined zero crossing; generating, at the first node device, the data message comprising the duration value, a node identification value, and a synchronization ID value; and transmitting, by the first node device, the data message. 13. The method of claim 12, wherein the synchronization ID value is associated with the received synchronization message. 14. The method of claim 12, further comprising: receiving the determined phase at the first node device; and storing the determined phase in a memory of the first node device. 15. The method of claim 8, wherein the duration values received from the at least one node device with a known phase connection are determined based on the first synchronization message. 16. A system for determining a phase of one or more nodes coupled to an electrical distribution system, the system comprising: a gateway device in electronic communication with a plurality of node devices connected to a power distribution network and having a memory and one or more electronic processors configured to: transmit a synchronization message to the plurality of node devices; receive a message from each of one or more of the plurality of node devices, wherein the message includes a time value indicating a duration between a receipt of the transmitted synchronization message and a detected zero crossing; group the received messages based on the duration value; compare the duration values against previous duration values received from at least a first node device with a known phase connection; and determine a phase of the first node device based on the comparison. 1. A system for determining a phase of one or more nodes coupled to an electrical distribution system, the system comprising: a plurality of gateway devices, each of the gateway devices in electronic communication with one or more node devices connected to a power distribution network and having a memory and one or more electronic processors configured to: transmit a synchronization message; receive a node response message from a first node device of the one or more node devices, wherein the node response message includes a duration value indicating a duration between a receipt of the transmitted synchronization message and a detected zero crossing; compare the duration value against previous duration values received from at least a second node device with a known phase connection; determine a phase of the first node device based on the comparison; and store the phase of the first node device in the memory. 2. The system of claim 1, wherein the one or more node devices are electrically coupled to a power distribution system and comprise a memory and one or more electronic processors configured to: receive the synchronization message; determine a zero crossing of an AC waveform of the power distribution system occurring subsequent to receiving the synchronization message; calculate the duration value between the receipt of the synchronization message and the determined zero crossing; generate the node response message comprising the duration value; and transmit the node response message. 3. The system of claim 2, wherein node response message further comprises a node identification value, and a synchronization ID value; and wherein the synchronization ID value is associated with the received synchronization message. 4. The system of claim 1, wherein the synchronization message is transmitted using a wireless communication protocol. 5. The system of claim 4, wherein the wireless communication protocol is an RF communication protocol. 6. The system of claim 1, wherein the one or more node devices are selected from a group consisting of electronic metering devices, sensors, and distribution automation devices. 7. The system of claim 1, wherein the one or more electronic processors of the gateway device are further configured to transmit the determined phase to the first node. 8. A method for determining a phase at a node device connected to a power distribution network, the method comprising: transmitting a first synchronization message to one or more node devices; receiving a data message from a first node device of the one or more node devices, wherein the data message includes a duration value; comparing the duration value received from the first node device against duration values received from at least a second node devices with a known phase connection; determining a phase of the first node device based on the comparison; and storing the phase of the first node device in a memory. 9. The method of claim 8, wherein the method is performed by a central computing device. 10. The method of claim 8, wherein the method is performed by a plurality of gateway devices in electronic communication with the one or more nodes. 11. The method of claim 8, wherein determining the phase of the first node device comprises determining a relationship of the duration value of the first node device to the durational values received from the at least one node device with a known phase connection, and wherein the phase of the first node device is determined to be one of the same phase, a +120° offset phase, and a −120° offset phase based on the determined relationship. 12. The method of claim 8, further comprising: receiving, at the first node device, the first synchronization message; determining, at the first node device, a zero crossing of an AC waveform of the power distribution system occurring immediately subsequent to receiving the first synchronization message; calculating, at the first node device, the duration value between the receipt of the first synchronization message and the determined zero crossing; generating, at the first node device, the data message comprising the duration value, a node identification value, and a synchronization ID value; and transmitting, by the first node device, the data message. 13. The method of claim 12, wherein the synchronization ID value is associated with the received synchronization message. 14. The method of claim 12, further comprising: receiving the determined phase at the first node device; and storing the determined phase in a memory of the first node device. 15. The method of claim 8, wherein the duration values received from the at least one node device with a known phase connection are determined based on the first synchronization message. 16. A method for determining a phase at a node device connected to a power distribution network, the method comprising: transmitting a first synchronization message to one or more node devices; receiving a data message from a first node device of the one or more node devices, wherein the data message includes a duration value; comparing the duration value received from the first node device against duration values received from at least a second node devices with a known phase connection; determining a phase of the first node device based on the comparison, wherein determining the phase of the first node device comprises determining a relationship of the duration value of the first node device to the durational values received from the at least one node device with a known phase connection, and wherein the phase of the first node device is determined to be one of the same phase, a +120° offset phase, and a −120° offset phase based on the determined relationship; and storing the phase of the first node device in a memory. Allowable Subject Matter Claims 1-20 are allowed, subject to correction of the noted double patenting rejection above. A full search was conducted and the features of the instant claims were not found to be in any reasonable combination of the prior art. The closest prior art consists of Hui (USPAN 2015/0237130) in view of Dam (USPN 6,631,639). Hui discloses transmitting a synchronization message (see paragraph 40 and figure 10: sending time sync messages that include the time value of a recent zero- crossing event and a time offset from that event) and determining the duration value received from at least a second node device with a known phase connection; determine a phase of the first node device; and store the phase of the first node device in the memory (see paragraph 46: a second component of the techniques herein involves synchronizing time between two devices on different phases. For example, techniques outside the scope of the techniques herein may allow devices to determine their relative phase and absolute phase. In a multi-phase system, the absolute time is referenced off a single phase (e.g., Phase A). Devices measuring zero-crossing events on different phases must adjust for this phase difference. In one embodiment, as shown in FIG. 9, a device may maintain a virtual clock that signals zero-crossing events at a phase-offset from the phase it is connected to. For example, if the device is connected to Phase B, it may maintain a virtual clock that signals events at a -120 degree offset to represent zero-crossing events on Phase A. When receiving a time-sync message from the first component, the device then assigns time values to virtual zero-crossing events for Phase A rather than the zero-crossing events on Phase B. Again, because the virtual clock is based on physical zero-crossing events of Phase B, any timing errors introduced by the link-layer are eliminated; also, see figure 10, especially steps 1020 and 1025). Dam discloses comparing a duration value against previous duration values received from at least a second node device (see claim 20: the step of producing pulses comprises producing single pulses of different and known duration and comparing the phase differences of the signal waveforms generated by said different duration pulses to check the integrity of components used in the detecting method). However, Hui and Dam do not disclose, suggest, or render obvious the limitations of the instant claims reciting a device in electronic communication with one or more node devices connected to a power distribution network and having a memory and one or more electronic processors configured to: transmit a synchronization message; receive a message from a first node device of the one or more node devices, wherein the message includes a time value indicating a time period between a receipt of the transmitted synchronization message and a detected zero crossing; compare the time period against previous time periods received from at least a second node device with a known phase connection; and determine a phase of the first node device based on the comparison, as recited in the instant claims. As such, claims 1-20 are allowed over the closest prior art references of Hui and Dam. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to Jamal Javaid whose telephone number is 571-270-5137 and email address is Jamal.Javaid@uspto.gov. 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, Charles Jiang, can be reached on 571-270-7191. 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). /JAMAL JAVAID/ Primary Examiner, Art Unit 2412
Read full office action

Prosecution Timeline

Sep 30, 2024
Application Filed
Sep 17, 2026
Non-Final Rejection mailed — §DP (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12739616
METHODS FOR SEMI-FLEXIBLE GAPS AND GAP SHARING
2y 10m to grant Granted Sep 15, 2026
Patent 12732886
SYSTEMS AND METHODS FOR DYNAMICALLY CONTROLLING THE CONFIGURATION OF A MODEM OF A USER EQUIPMENT DEVICE
2y 11m to grant Granted Sep 08, 2026
Patent 12732888
WIRELESS COMMUNICATIONS THROUGH WIRELESS RELAY DEVICE
2y 10m to grant Granted Sep 08, 2026
Patent 12732325
SELECTING A SIDELINK POSITION REFERENCE SIGNAL CONFIGURATION BASED ON AVAILABLE POWER
2y 11m to grant Granted Sep 08, 2026
Patent 12720634
BATTERY CURRENT LIMITING TECHNIQUES FOR DUAL SUBSCRIBER IDENTITY MODULE-DUAL ACTION OPERATION
3y 6m to grant Granted Aug 25, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

Strategy Recommendation AI-generated — please review before filing

Get a prosecution strategy drawn from examiner precedents, rejection analysis, and claim mapping.
Typically takes 5-10 seconds — AI-generated, attorney review required before filing

Prosecution Projections

1-2
Expected OA Rounds
88%
Grant Probability
94%
With Interview (+5.8%)
2y 7m (~7m remaining)
Median Time to Grant
Low
PTA Risk
Based on 994 resolved cases by this examiner. Grant probability derived from career allowance rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month