Prosecution Insights
Last updated: April 19, 2026
Application No. 18/591,532

GUARD ASSEMBLY FOR A CONVEYOR SYSTEM

Non-Final OA §102§103
Filed
Feb 29, 2024
Examiner
DEUBLE, MARK A
Art Unit
3651
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Intelligrated Headquarters LLC
OA Round
2 (Non-Final)
88%
Grant Probability
Favorable
2-3
OA Rounds
1y 11m
To Grant
96%
With Interview

Examiner Intelligence

Grants 88% — above average
88%
Career Allow Rate
1009 granted / 1144 resolved
+36.2% vs TC avg
Moderate +8% lift
Without
With
+8.1%
Interview Lift
resolved cases with interview
Fast prosecutor
1y 11m
Avg Prosecution
20 currently pending
Career history
1164
Total Applications
across all art units

Statute-Specific Performance

§101
0.3%
-39.7% vs TC avg
§103
28.3%
-11.7% vs TC avg
§102
39.0%
-1.0% vs TC avg
§112
25.9%
-14.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1144 resolved cases

Office Action

§102 §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 § 102 The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. Claims 11-12, 15, and 17 are rejected under 35 U.S.C. 102a1 as being anticipated by DeFant et al. (US 11,629,010). Under a different description of DeFant than offered in the previous office action, DeFant shows a holder for a guard assembly with guard members 129 in a conveyor system with a plurality of rollers 103 rotatably disposed between a pair of side frames 109. The holder includes a base wall W, a first arm A1 extending from a first/lower side of the base wall W, and a second arm A2 extending from a second/upper side of the base wall. A rotatable element 131 is coupled to the first arm A1 by an axle 147 (see the annotated figure below). The rotatable element 131 is configured to engage with an adjacent roller 103 of the conveyor system. The rotatable element rotates about an axis 147 upon engagement with the adjacent roller of the conveyor system. The rotatable element 131 comprises a cylinder extending along a length of the adjacent roller of the plurality of rollers 103. PNG media_image1.png 716 1022 media_image1.png Greyscale At least one support rib R extends between the first arm A1 and the second arm A2. Another rotatable element 131 coupled to the second arm A2 of the holder. As described above, DeFant shows all the structure required by claims 11-12 and 17. In regard to the remarks of the applicant’s representative, it is noted that while claim 11 as amended corresponds to original claim 14, and that while claim 14 was originally indicated as being allowable if rewritten to overcome the rejection under 35 U.S.C. 112, upon reconsideration, DeFant shows all the structure now required by original claim 14, currently amended claim 11, based upon the above interpretation of DeFant. As the rejection above described reinterpreting of DeFant arguably constitutes a new grounds of rejection, this action will not be made final. 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. Claims 13 is rejected under 35 U.S.C. 103 as being unpatentable over DeFant. In regard to the limitations regarding the size of the cylinders defining the rotatable elements, specifically that the cylinders have a diameter of the cylinder is in a range between 30 mm to 100 mm and a length between 50 mm to 3000 mm, it should be noted that these ranges encompass a variety of shapes of a cylinder, including cylinders that have a length that is up to 10 times the diameter and cylinders that have a length that is ½ the diameter of the cylinder. As illustrated, the cylinders of the rotatable elements 131 have lengths greater that are around half the diameters of the elements that would be within the above ranges. As such, it would have been obvious to one of ordinary skill in the art before the effective filing date of the present invention to form the rotatable elements 131 with diameters between 30 mm to 100 mm and lengths between 50 mm to 3000 mm in order to use them with conveyor rollers of conventional sizes. As the applicant’s representative made no remarks concerning this rejection, it will not be further discussed. Allowable Subject Matter Claims 1-5 and 7-10 are allowed. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to MARK A DEUBLE whose telephone number is (571)272-6912. The examiner can normally be reached Monday-Friday flex schedule. 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, Gene Crawford can be reached at 571-272-6911. 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. /MARK A DEUBLE/Primary Examiner, Art Unit 3651
Read full office action

Prosecution Timeline

Feb 29, 2024
Application Filed
Jul 11, 2025
Non-Final Rejection — §102, §103
Oct 15, 2025
Response Filed
Jan 08, 2026
Non-Final Rejection — §102, §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12600572
MOTOR-DRIVEN CONVEYOR-ROLLER CONTROLLER, SYSTEM COMPRISING SUCH A CONTROLLER AND METHOD FOR OPERATING A MOTOR ROLLER
2y 5m to grant Granted Apr 14, 2026
Patent 12600602
CONNECTING GEAR MECHANISM OF A PASSENGER-TRANSPORTING SYSTEM DESIGNED AS AN ESCALATOR OR MOVING WALKWAY
2y 5m to grant Granted Apr 14, 2026
Patent 12586934
MULTI-CONNECTION BRACKET AND METHODS OF USE
2y 5m to grant Granted Mar 24, 2026
Patent 12583684
Conveyor Device With Transport Cassette
2y 5m to grant Granted Mar 24, 2026
Patent 12570503
HANDRAIL AND METHOD OF MANUFACTURING A HANDRAIL
2y 5m to grant Granted Mar 10, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

2-3
Expected OA Rounds
88%
Grant Probability
96%
With Interview (+8.1%)
1y 11m
Median Time to Grant
Moderate
PTA Risk
Based on 1144 resolved cases by this examiner. Grant probability derived from career allow rate.

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