Prosecution Insights
Last updated: April 19, 2026
Application No. 18/066,194

OPERATOR PROTECTION SYSTEM AND METHOD

Non-Final OA §103§DP
Filed
Dec 14, 2022
Examiner
KUHFUSS, ZACHARY L
Art Unit
3615
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Westinghouse Air Brake Technologies Corporation
OA Round
1 (Non-Final)
78%
Grant Probability
Favorable
1-2
OA Rounds
2y 10m
To Grant
96%
With Interview

Examiner Intelligence

Grants 78% — above average
78%
Career Allow Rate
829 granted / 1065 resolved
+25.8% vs TC avg
Strong +18% interview lift
Without
With
+18.0%
Interview Lift
resolved cases with interview
Typical timeline
2y 10m
Avg Prosecution
37 currently pending
Career history
1102
Total Applications
across all art units

Statute-Specific Performance

§101
0.9%
-39.1% vs TC avg
§103
48.6%
+8.6% vs TC avg
§102
28.5%
-11.5% vs TC avg
§112
15.0%
-25.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1065 resolved cases

Office Action

§103 §DP
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 . 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. Election/Restrictions Applicant’s election without traverse of claims 1-10 in the reply filed on 12/18/2025 is acknowledged. 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 1-10 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-17 of U.S. Patent No. 11,558,906. Although the claims at issue are not identical, they are not patentably distinct from each other because the patented claims fully encompass the subject matter of the instant claims, the patented claims having the additional narrowing recitation of a node device. 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) 1-3 and 5-7 is/are rejected under 35 U.S.C. 103 as being unpatentable over Yen et al. (US 2020/0356651 A1) in view of Bennett (US 2015/0189587 A1). Referring to Claim 1: Yen teaches a method comprising: receiving a request to assume control of equipment generated by a candidate operator (Para. [0041]) via a first communication pathway (Para. [0042]); communicating at least a portion of a key to the candidate operator via the first communication pathway determining the candidate operator to be a confirmed operator based at least in part on obtaining the key from the candidate operator via the first communication pathway (Para. [0065-0066]). While Yen teaches separate first and second communication pathways for the service entity computing system to communicate with the user device and the vehicle computing system, respectively (Para. [0036]), Yen does not specifically teach that a portion of a key is communicated to the candidate operator via the second communication pathway. However, Bennett teaches a wireless communication device capable of utilizing multiple radio access technologies, wherein a portion of a key is communicated to the candidate operator via the second communication pathway (Para. [0120]) (claim 7). It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention, for Yen to communicate a portion of a key to the candidate operator via a second communication pathway, as taught by Bennett, in order to communicate more reliably using multiple pathways between computing elements during authentication processes with a reasonable expectation of success. Referring to Claim 2: Yen further teaches the method, further comprising transferring control of the equipment to the confirmed operator (Para. [0034]). Referring to Claim 3: Yen further teaches the method, wherein the equipment is a vehicle (30) or a wayside unit, and the method further comprising obtaining the first key part or a second key part from the wayside unit or from an onboard controller of the vehicle (103) (Para. [0083]). Referring to Claim 5: Yen further teaches the method, further comprising determining the candidate operator to be a denied operator based at least in part on obtaining a different key or key part from the candidate operator (50) via the first communication pathway (Para. [0087], emphasis on last sentence). Referring to Claim 6: Yen in view of Bennett further teaches the method of claim 1, wherein the first communication pathway is associated with a first type of communications network or a first type of communication protocol, and the second communication pathway is associated with a second type of communications network or a second type of communication protocol (see Yen, Para. [0268]). Referring to Claim 7: Yen further teaches the method, wherein determining the candidate operator to be the confirmed operator is based at least in part on one or more of an operator credential (Para. [0043]), a vehicle location, a wayside unit location, a vehicle operation schedule, an operator authority level (Para. [0118]), a security token (Para. [0050]), and biometric identification information. Claim(s) 4 is/are rejected under 35 U.S.C. 103 as being unpatentable over Yen in view of Bennett and Kalghatgi et al. (US 2019/0095725 A1). Referring to Claim 4: Yen does not specifically teach opening a communication channel between a vehicle and the confirmed operator responsive to determining that the candidate operator is the confirmed operator. However, Kalghatgi teaches a detection system for a vehicle, comprising opening a communication channel between a vehicle and the confirmed operator responsive to determining that the candidate operator is the confirmed operator (Para. [0113-0115]). It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention, for Yen to open a communication channel between a vehicle and a confirmed operator, as taught by Kalghatgi, in order to enable direct communications between a confirmed operator and a vehicle over a secured channel with a reasonable expectation of success. Claim(s) 8 and 9 is/are rejected under 35 U.S.C. 103 as being unpatentable over Yen in view of Bennett and Tamaribuchi (US 2012/0176217 A1). Referring to Claim 8: Yen does not specifically teach that the confirmed operator is enabled to initiate the equipment to perform one of: switch or secure an interlock or crossing guard; engage an emergency stop; and de-energize electrical equipment. However, Tamaribuchi teaches a control system, terminal device for maintenance workers, further comprising transferring control of the equipment to the confirmed operator, and the confirmed operator thereby being enabled to initiate the equipment (Para. [0125-0127]) to perform one or more of: switching or securing one or both of an interlock and a crossing guard to prevent or block another vehicle from entering a section of a route, where the equipment is a wayside unit (Para. [0128]) (Fig. 7); engaging an emergency stop function to prevent the equipment from moving or from being moved, where the equipment is a vehicle, and the vehicle is or is not part of a vehicle group; and de-energizing electrical equipment, where the equipment is an electricity providing device (Para. [0128]) (Fig. 7). It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention, for Yen to use the system to confirm operators for the type of equipment taught by Tamaribuchi and initiate the equipment to perform switching or securing of an interlock or crossing guard and/or de-energizing electrical equipment, and thereby provide enhanced safety for these equipment operations with a reasonable expectation of success. Referring to Claim 9: Yen does not specifically teach that the equipment is a wayside unit as claimed. However, Tamaribuchi teaches a control system, wherein the equipment is a wayside unit (920), and the method further comprising signaling a central authority (100) that the section of the route is blocked, and the central authority does not and/or cannot direct another vehicle to enter the section of the route until the confirmed operator returns control over the equipment back to the central authority (Para. [0128]) (Fig. 7). It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention, for Yen to use the system to confirm operators for the type of equipment taught by Tamaribuchi and initiate the equipment to perform wayside route blocking in coordination with a central authority, as taught by Tamaribuchi, thereby provide enhanced safety for these equipment operations with a reasonable expectation of success. Allowable Subject Matter Claim 10 is 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. The prior art fails to teach or reasonably suggest that the equipment is the electricity providing device and the method further comprising facilitating access to an interior of the equipment by the confirmed operator. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to ZACHARY L KUHFUSS whose telephone number is (571)270-7858. The examiner can normally be reached Monday - Friday 10:00am to 6:00 pm CDT. 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, Samuel (Joe) Morano can be reached on (571)272-6682. 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. /ZACHARY L KUHFUSS/Primary Examiner, Art Unit 3617
Read full office action

Prosecution Timeline

Dec 14, 2022
Application Filed
Feb 05, 2026
Non-Final Rejection — §103, §DP (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

1-2
Expected OA Rounds
78%
Grant Probability
96%
With Interview (+18.0%)
2y 10m
Median Time to Grant
Low
PTA Risk
Based on 1065 resolved cases by this examiner. Grant probability derived from career allow rate.

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