Prosecution Insights
Last updated: October 04, 2026
Application No. 18/784,993

Unmanned aerial vehicle (UAV)-based zonal spraying device and method for ecological restoration

Non-Final OA §103
Filed
Jul 26, 2024
Priority
Mar 25, 2024 — CN 2024103440064
Examiner
GANEY, STEVEN J
Art Unit
3752
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Chengdu University Of Technology
OA Round
1 (Non-Final)
82%
Grant Probability
Favorable
1-2
OA Rounds
3m
Est. Remaining
93%
With Interview

Examiner Intelligence

Grants 82% — above average
82%
Career Allowance Rate
1151 granted / 1400 resolved
+12.2% vs TC avg
Moderate +10% lift
Without
With
+10.4%
Interview Lift
resolved cases with interview
Typical timeline
2y 6m
Avg Prosecution
16 currently pending
Career history
1412
Total Applications
across all art units

Statute-Specific Performance

§101
1.6%
-38.4% vs TC avg
§103
35.7%
-4.3% vs TC avg
§102
30.7%
-9.3% vs TC avg
§112
19.9%
-20.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1400 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 . Election/Restrictions Claims 9-16 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected invention, there being no allowable generic or linking claim. Election was made without traverse in the reply filed on June 10, 2026. Applicant’s election without traverse of Group I, claims 1-8, in the reply filed on June 10, 2026 is acknowledged. 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. Claim(s) 1-8 are rejected under 35 U.S.C. 103 as being unpatentable over CN217339846U in view of KR102019112540A. As to claims 1 and 2, CN217339846U discloses an unmanned aerial vehicle (UAV) 1 comprising a UAV body 1, wherein bottom ends of two sides of the UAV body are respectively provided with support legs 2; the UAV body comprises a spraying mechanism 3; the spraying mechanism is located at a middle position between the support legs, and comprises a spraying box 3; a partition 4 is provided inside the spraying box; a water storage chamber is provided above the partition, and a rotating drive box 5 is provided below the partition; a rotating drive assembly and a rotating pipe 10 are provided inside the rotating drive box; the rotating pipe is connected to the rotating drive assembly, and a bottom end of the rotating pipe extends out of the rotating drive box and is connected to a nozzle mechanism 9, except for a scanning mechanism and where the scanning mechanism is located on the nozzle mechanism, and the scanning mechanism comprises a plurality of sensor assemblies comprise a multispectral camera, a thermal infrared sensor, and a light detection and ranging (LiDAR) system. See Figures 1-3 and pages 1-7. KR102019112540A discloses an unmanned aerial vehicle (UAV) with a scanning mechanism and where the scanning mechanism is located on the nozzle mechanism, and the scanning mechanism comprises a plurality of sensor assemblies comprise a multispectral camera, a thermal infrared sensor, and a light detection and ranging (LiDAR) system. See Figures 1-8 and pages 1-8. It would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to provide a scanning mechanism and where the scanning mechanism is located on the nozzle mechanism, and the scanning mechanism comprises a plurality of sensor assemblies comprise a multispectral camera, a thermal infrared sensor, and a light detection and ranging (LiDAR) system in the apparatus of CN217339846U, as taught by KR102019112540A, since with such a modification the areas being treated can be monitored and the information received the nozzles can be adjusted for spraying of necessary materials. As to claims 3-7, see Figures 1-3 and pages 1-7 of CN217339846U. As to claim 8, it would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to provide a conical nozzle or circular nozzle in the apparatus of CN217339846U, since such nozzles are well known in the spraying art and would function equally as well in the apparatus of CN217339846U. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Hertzberg ‘205 and Dahlstrom ‘000 disclose UAV’s with spray nozzles. Any inquiry concerning this communication or earlier communications from the examiner should be directed to STEVEN J GANEY whose telephone number is (571)272-4899. The examiner can normally be reached M-F 9am-5:30pm. 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, Arthur Hall can be reached at (571)270-1814. 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. STEVEN J. GANEY Primary Examiner Art Unit 3752 /STEVEN J GANEY/ Primary Examiner, Art Unit 3752
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Prosecution Timeline

Jul 26, 2024
Application Filed
Sep 11, 2026
Non-Final Rejection mailed — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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LIQUID SPRAY NOZZLE AND LIQUID SPRAY DEVICE
4y 5m to grant Granted Sep 29, 2026
Patent 12746562
LIQUID JET DEVICE
2y 0m to grant Granted Sep 29, 2026
Patent 12742428
INJECTORS, METHODS, AND SYSTEMS FOR DUAL FUEL COMBUSTION
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Patent 12735312
PILOT CONTROLLED REFILL TANKS FOR FIREFIGHTING AIRCRAFT
1y 10m to grant Granted Sep 15, 2026
Patent 12714038
MOBILE HYDROGEN-OXYGEN BURNER RAINMAKING DEVICE
3y 7m to grant Granted Aug 25, 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
82%
Grant Probability
93%
With Interview (+10.4%)
2y 6m (~3m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1400 resolved cases by this examiner. Grant probability derived from career allowance rate.

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