Prosecution Insights
Last updated: April 19, 2026
Application No. 18/496,046

HVAC SENSOR INFORMATION AND SENSOR COMMUNICATION OVER RELAY-CONTROLLED POWER LINE

Non-Final OA §103
Filed
Oct 27, 2023
Examiner
SURYAWANSHI, SURESH
Art Unit
2116
Tech Center
2100 — Computer Architecture & Software
Assignee
Carrier Corporation
OA Round
1 (Non-Final)
88%
Grant Probability
Favorable
1-2
OA Rounds
2y 8m
To Grant
99%
With Interview

Examiner Intelligence

Grants 88% — above average
88%
Career Allow Rate
934 granted / 1058 resolved
+33.3% vs TC avg
Moderate +13% lift
Without
With
+12.6%
Interview Lift
resolved cases with interview
Typical timeline
2y 8m
Avg Prosecution
21 currently pending
Career history
1079
Total Applications
across all art units

Statute-Specific Performance

§101
9.2%
-30.8% vs TC avg
§103
28.7%
-11.3% vs TC avg
§102
34.5%
-5.5% vs TC avg
§112
13.0%
-27.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1058 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 . DETAILED ACTION Claims1-12 are presented for examination. Specification The disclosure is objected to because of the following informalities: symbol “402” is not in figure 4 as mentioned in paragraph 0039. Appropriate correction is required. 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 (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 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 1-12 are rejected under 35 U.S.C. 103 as being unpatentable over Gillette et al (US Pub. 2019/03533681; hereinafter Gillette) in view of Apsangi (US Pub. 20200256577). As per claim 1, Gillette discloses a wireless gateway device for a Heating, Ventilation and Air-Conditioning (HVAC) system, comprising: an Input/Output (I/O) interface [Fig. 7; I/O PORT(S) 112; para 0055; one or more input/output (I/O) ports 112]; a communication unit [Abstract; “… using power-line communication.”; para 0004; “The control system may include a zone control panel or board, which may be communicatively coupled to one or more of the devices, for example, via dedicated one or more dedicated communication busses.”]; and a controller communicably coupled with the I/O interface and the communication unit [Fig. 7; para 0006; “The zone control panel includes modulator circuitry and a microcontroller.”], the controller being configured to: receive, via at least one power converter, operational data associated with the HVAC system from at least one of one or more sensors or a thermostat of the HVAC system over a power line, wherein the at least one power converter is disposed on the power line to act as an interface between the at least one of the one or more sensors or the thermostat, and the wireless gateway device [Fig. 7, 8; para 0017; “… receiving information at the zone control panel …”; para 0022; “… a zone control panel may receive input data or signals from one or more devices in the HVAC system, such as an interface device, a thermostat, a sensor, another zone control panel, or any combination thereof.”; Fig. 4; para 0040; analog to digital (A/D) converter 84; para 0062-0063; “The microcontroller 110 may then transmit this control command to a digital to analog converter …”; “… converting a control command from an analog electrical signal to a digital signal via an analog to digital converter (ADC).”; Abstract; para 0023-0024, 0055; using power-line communication (PLC); para 0060, 0062-0063, 0065]; and perform at least one of: control one or more components of the HVAC system based on the received operational data associated with the HVAC system, wherein the one or more components of the HVAC system comprise at least one of an indoor unit and an outdoor unit [para 0024-0025, 0054-0055; controlling operation of devices and/or equipment in the HVAC system using power-line communication; Fig. 3; para 0047; an outdoor HVAC unit 58; an indoor HVAC unit 56; para 0040; “The control panel 82 and its components may function to regulate operation of the vapor compression system 72 based on feedback from an operator, from sensors of the vapor compression system 72 that detect operating conditions, and so forth.”; para 0060, 0062-0063, 0065]; and transmit, to a remote server, the received operational data associated with the HVAC system [para 0027; “… control device 16 may include computer systems that are integrated with or separate from other building control or monitoring systems, and even systems that are remote from the building 10.”]. Gillette does not specifically disclose regarding using a wireless gateway device. However, Apsangi (in the same field of endeavor, i.e., monitoring and controlling an HVAC system) clearly discloses utilizing a wireless gateway [para 0023, 0025]. Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to combine the cited references as both are directed to monitor and control one or more components of a HVAC system. Moreover, utilizing the wireless gateway will clearly add benefit to the invention disclosed by Gillette as use of a wireless gateway will help in minimizing the wiring for communication and therefore simplify the connection of components to the controller and/or to other components because no more wiring is required. Plus adding or removing/replacing a component/device will be easy. As per claim 9, a method for operation of a wireless gateway device for a Heating, Ventilation and Air-Conditioning (HVAC) system, the method comprising: receiving operational data associated with the HVAC system from at least one of one or more sensors and a thermostat of the HVAC system over a power line, wherein the at least one power converter is disposed on the power line to act as an interface between the at least one of the one or more sensors or the thermostat, and the wireless gateway device [Fig. 7, 8; para 0017; “… receiving information at the zone control panel …”; para 0022; “… a zone control panel may receive input data or signals from one or more devices in the HVAC system, such as an interface device, a thermostat, a sensor, another zone control panel, or any combination thereof.”; Fig. 4; para 0040; analog to digital (A/D) converter 84; para 0062-0063; “The microcontroller 110 may then transmit this control command to a digital to analog converter …”; “… converting a control command from an analog electrical signal to a digital signal via an analog to digital converter (ADC).”; Abstract; para 0023-0024, 0055; using power-line communication (PLC); para 0060, 0062-0063, 0065]; and performing at least one of: controlling one or more components of the HVAC system based on the received operational data associated with the HVAC system, wherein the one or more components of the HVAC system comprise at least one of an indoor unit and an outdoor unit [para 0022, 0024-0025, 0054-0055; controlling operation of devices and/or equipment in the HVAC system using power-line communication; Fig. 3; para 0047; an outdoor HVAC unit 58; an indoor HVAC unit 56; para 0040; “The control panel 82 and its components may function to regulate operation of the vapor compression system 72 based on feedback from an operator, from sensors of the vapor compression system 72 that detect operating conditions, and so forth.”; para 0060, 0062-0063, 0065]; and transmitting, to a remote server, the received operational data associated with the HVAC system [para 0027; “… control device 16 may include computer systems that are integrated with or separate from other building control or monitoring systems, and even systems that are remote from the building 10.”]. Gillette does not specifically disclose regarding using a wireless gateway device. However, Apsangi (in the same field of endeavor, i.e., monitoring and controlling an HVAC system) clearly discloses utilizing a wireless gateway [para 0023, 0025]. Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to combine the cited references as both are directed to monitor and control one or more components of a HVAC system. Moreover, utilizing the wireless gateway will clearly add benefit to the invention disclosed by Gillette as use of a wireless gateway will help in minimizing the wiring for communication and therefore simplify the connection of components to the controller and/or to other components because no more wiring is required. Plus adding or removing/replacing a component/device will be easy. As per claims 2 and 10, Gillette discloses wherein the controller is further configured to: generate one or more user interfaces via a display device to receive one or more user inputs from a user of the HVAC system [Fig. 7; INTERFACE DEVICE 1 … INTERFACE DEVICE N; para 0049, 0064; user input received from an interface device 102], and control the one or more components of the HVAC system based on the received operational data and the received one or more user inputs [para 0024-0025, 0054-0055; controlling operation of devices and/or equipment in the HVAC system using power-line communication]. As per claims 3 and 11, Gillette discloses wherein the controller is further configured to: generate one or more control signals based on the received operational data associated with the HVAC system [para 0006, 0022, 0055; control commands or signals]; and transmit, to the thermostat via the power line, the one or more control signals to control the one or more components of the HVAC system [para 0024-0025, 0054-0055; controlling operation of devices and/or equipment in the HVAC system using power-line communication]. As per claims 4 and 12, Apsangi discloses wherein the controller is further configured to: receive, from the server, one or more operational characteristics of the HVAC system in response to the transmitted operational data [Fig. 4; para 0023, 0030; application server; database server; para 0032; characteristics data]; and control the one or more components of the HVAC system based on the received one or more operational characteristics of the HVAC system [Abstract; HVAC controlling unit; para 0007, 0019-0022]. As per claim 5, Gillette discloses wherein the controller is communicably coupled to the at least one power line converter for transmitting the one or more control signals over the power line, and wherein the at least one power line converter is configured to convert the one or more control signals into one or more communication messages for transmission onto the power line [Fig. 7, 8; para 0017; “… receiving information at the zone control panel …”; para 0022; “… a zone control panel may receive input data or signals from one or more devices in the HVAC system, such as an interface device, a thermostat, a sensor, another zone control panel, or any combination thereof.”; Fig. 4; para 0040; analog to digital (A/D) converter 84; para 0062-0063; “The microcontroller 110 may then transmit this control command to a digital to analog converter …”; “… converting a control command from an analog electrical signal to a digital signal via an analog to digital converter (ADC).”; Abstract; para 0023-0024, 0055; using power-line communication (PLC); para 0060, 0062-0063, 0065]. As per claim 6, Gillette discloses wherein the controller is communicably coupled to the at least one power line converter o receive the operational data via the power line, wherein the at least one power line converter is configured to convert one or more communication messages associated with sensor data that are transmitted over the power line into the operational data [Fig. 7, 8; para 0017; “… receiving information at the zone control panel …”; para 0022; “… a zone control panel may receive input data or signals from one or more devices in the HVAC system, such as an interface device, a thermostat, a sensor, another zone control panel, or any combination thereof.”; Fig. 4; para 0040; analog to digital (A/D) converter 84; para 0062-0063; “The microcontroller 110 may then transmit this control command to a digital to analog converter …”; “… converting a control command from an analog electrical signal to a digital signal via an analog to digital converter (ADC).”; Abstract; para 0023-0024, 0055; using power-line communication (PLC); para 0060, 0062-0063, 0065]. As per claim 7, Gillette discloses wherein the controller is configured to establish a serial bus line communication for exchanging information with the at least one power line converter [para 0047, 0075; “… the zone control panel 107 may use a serial protocol, such as RS-232 or RS-585 …”]. As per claim 8, Gillette discloses wherein the controller is configured to monitor power line signals being transmitted over to the power line for determining at least a run-time of the HVAC system [Fig. 7; para 0023-0024, 0055, 0060, 0064, 0066, 0068; receiving and/or transmitting data signals over power-line communication]. The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. A. US-20210199322 discloses a system for monitoring at least one HVAC system includes at least one remotely accessible server, at least one probe or sensor operatively connected to the at least one HVAC system and configured to acquire operational data. C. US-20100118983 discloses a combined power and communication system, a transmitter, a receiver, and a method of communicating data over a power line are provided. D. US-10070379 discloses a method for operating a wireless gateway device to transmit a network identifier of a network to be used for traffic data including audio data. N. EP-3407551 discloses a wireless gateway system and a communication method thereof. O. WO-2019089384 discloses a home thermostat is used as a wireless gateway for reprogramming and accessing diagnostic data from a HVAC system. P. CN-107078758 discloses a method and/or device for providing fault tolerance for a communication signal on the power line distribution network. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to SURESH K SURYAWANSHI whose telephone number is (571)272-3668. The examiner can normally be reached M-F 8:30-5:00 PM. 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, Shah Kamini can be reached at 5712722279. 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. /SURESH SURYAWANSHI/Primary Examiner, Art Unit 2116 1 Prior art cited by applicant in submitted information discloser statement.
Read full office action

Prosecution Timeline

Oct 27, 2023
Application Filed
Jan 05, 2026
Non-Final Rejection — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12591223
RESOURCE MANAGEMENT SYSTEM AND ADDITIVE MANUFACTURING FACILITY WITH SUCH
2y 5m to grant Granted Mar 31, 2026
Patent 12591220
Systems and Methods for Using Wire Printing Process Data to Predict Material Properties and Part Quality
2y 5m to grant Granted Mar 31, 2026
Patent 12583183
IMPLANTED 3D PRINTING QUALITY ASSURANCE CONTROL
2y 5m to grant Granted Mar 24, 2026
Patent 12565007
AIRY BEAM-ENABLED BINARY ACOUSTIC METASURFACES FOR UNDERWATER ULTRASOUND BEAM MANIPULATION
2y 5m to grant Granted Mar 03, 2026
Patent 12560897
Estimating Energy Consumption for a Building Using Dilated Convolutional Neural Networks
2y 5m to grant Granted Feb 24, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

AI Strategy Recommendation

Get an AI-powered prosecution strategy using examiner precedents, rejection analysis, and claim mapping.
Powered by AI — typically takes 5-10 seconds

Prosecution Projections

1-2
Expected OA Rounds
88%
Grant Probability
99%
With Interview (+12.6%)
2y 8m
Median Time to Grant
Low
PTA Risk
Based on 1058 resolved cases by this examiner. Grant probability derived from career allow 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