Prosecution Insights
Last updated: April 17, 2026
Application No. 18/173,632

GEOMETRIC MULTIFORMAT GRAIN DRYER

Non-Final OA §103
Filed
Feb 23, 2023
Examiner
WAN, DEMING
Art Unit
3762
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
unknown
OA Round
1 (Non-Final)
76%
Grant Probability
Favorable
1-2
OA Rounds
2y 7m
To Grant
99%
With Interview

Examiner Intelligence

Grants 76% — above average
76%
Career Allow Rate
691 granted / 903 resolved
+6.5% vs TC avg
Strong +42% interview lift
Without
With
+42.4%
Interview Lift
resolved cases with interview
Typical timeline
2y 7m
Avg Prosecution
46 currently pending
Career history
949
Total Applications
across all art units

Statute-Specific Performance

§101
0.3%
-39.7% vs TC avg
§103
47.9%
+7.9% vs TC avg
§102
25.2%
-14.8% vs TC avg
§112
22.2%
-17.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 903 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 . Claim Objections Claim 2 is objected to because of the following informalities: “wherein plurality of openings” in Line 2 shall be “wherein the plurality of openings”. 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. Claim 1 are rejected under 35 U.S.C. 103 as being unpatentable over US Patent 4, 006,536 to Meiners in view of US Patent Publication 20160047600 to Pacheco. In Reference to Claim 1 Meiners discloses a geometric multiformat grain dryer comprising: a first grain drying tower (Fig. 1, annotated by the examiner), a second grain drying tower (Fig. 1, annotated by the examiner), and a third grain drying tower (Fig. 1, annotated by the examiner); the first grain drying tower, the second grain drying tower, and the third grain drying tower comprising: a plurality of airducts (Fig. 1, 82, 80); the plurality of airducts arranged in transverse fashion in relation to one another (As showed in Fig. 1) PNG media_image1.png 693 798 media_image1.png Greyscale Meiners does not teach the detail of the air duct. Pacheco teaches the plurality of airducts having a plurality of openings , wherein the plurality of openings (Fig. 12, annotated by the examiner) are spaced along each of the plurality of airducts such that superficial segments (Fig. 12, annotated by the examiner) without the plurality of openings are positioned between areas with the plurality of openings. PNG media_image2.png 663 721 media_image2.png Greyscale It would have been obvious to one with ordinary skill in the art before the effective filing date of the claimed invention to incorporate teachings from Pacheco into the design of Meiners. Doing so, would result in the air duct with openings of Pacheco being used as air ducts in the design of Meiners. Both inventions of Pacheco and Meiners are in the same field of endeavor. Pacheco teaches an air duct design with opening on the side wall to increase the air flow volume. Therefore, the heat exchanging efficiency would be improved. Meiners teaches the air duct having five side walls (82) or 4 side walls (80). The combination of Meiners and Pacheco as applied to Claim 1 does not teach the air duct having 6 side walls. The Federal Circuit held that, where the only difference between the prior art and the claims was a recitation of relative dimensions of the claimed device and a device having the claimed relative dimensions would not perform differently than the prior art device, the claimed device was not patentably distinct from the prior art device. In Reference to Claims 9-11 Meiners discloses a three tower structure. Meiners does not teach the arrangement of multiple tower arranged in certain formation. It would have been obvious to one having ordinary skill in the art at the time the invention was made to arrange multiple towers in certain formation in order to improve the efficiency, since it has been held that rearranging parts of an invention involves only routine skill in the art. In Reference to Claim 12 Meiners discloses an insulation (Fig. 1, annotated by the examiner) formed by a first layer of air between a first internal wall (Fig. 1, annotated by the examiner) and a second internal wall (Fig. 1, annotated by the examiner), and a second layer (Fig. 1, annotated by the examiner) of air between the second internal wall and ends of the plurality of the airducts closest to the second layer of air. Allowable Subject Matter Claim 13 is allowed. Claims 2-8 are 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. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to DEMING WAN whose telephone number is (571)272-1410. The examiner can normally be reached Mon-Thur: 8 am to 6 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, Michael Hoang can be reached at 57122726460. 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. DEMING . WAN Examiner Art Unit 3762 /DEMING WAN/Primary Examiner, Art Unit 3762 2/3/26
Read full office action

Prosecution Timeline

Feb 23, 2023
Application Filed
Feb 03, 2026
Non-Final Rejection — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12601103
FOREIGN SUBSTRATE COLLECTOR FOR A LAUNDRY APPLIANCE
2y 5m to grant Granted Apr 14, 2026
Patent 12590394
Air Bypass Seal With Backer For Improved Drying Performance In A Combination Washer/Dryer
2y 5m to grant Granted Mar 31, 2026
Patent 12590400
HANGER DEVICE
2y 5m to grant Granted Mar 31, 2026
Patent 12588452
SUBSTRATE PROCESSING APPARATUS AND METHOD THEREOF
2y 5m to grant Granted Mar 24, 2026
Patent 12578142
DRY SPACE CREATION APPARATUS AND DRY SPACE CREATION METHOD
2y 5m to grant Granted Mar 17, 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
76%
Grant Probability
99%
With Interview (+42.4%)
2y 7m
Median Time to Grant
Low
PTA Risk
Based on 903 resolved cases by this examiner. Grant probability derived from career allow rate.

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