Prosecution Insights
Last updated: April 19, 2026
Application No. 18/548,446

DRYER APPARATUS

Non-Final OA §103
Filed
Aug 30, 2023
Examiner
WAN, DEMING
Art Unit
3762
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Hedgehog AS
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 1 is objected to because of the following informalities: Claim 1 recites “a housing” in Line 3 and “the dryer housing” in Line 11. The Office takes an assumption that they the same item. So the same name shall be used. 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. This application currently names joint inventors. In considering patentability of the claims the examiner presumes that the subject matter of the various claims was commonly owned as of the effective filing date of the claimed invention(s) absent any evidence to the contrary. Applicant is advised of the obligation under 37 CFR 1.56 to point out the inventor and effective filing dates of each claim that was not commonly owned as of the effective filing date of the later invention in order for the examiner to consider the applicability of 35 U.S.C. 102(b)(2)(C) for any potential 35 U.S.C. 102(a)(2) prior art against the later invention. Claims 1 and 5-15 are rejected under 35 U.S.C. 103 as being unpatentable over the Applicant provide prior art US Patent Publication 2010/0031526 to Tuckett in view of US Patent Publication 2007/0062513 to Gagas. In Reference to Claim 1 Tuckett discloses a dryer Tuckett does not teach the detail of the blade Gagas teaches the centrifugal impeller (20) having backwardly curved blades (Paragraph 14) 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 Gagas into the design of Tuckett. Doing so, would result in the backwardly curved blades being used as the impeller blade of Tuckett. Both inventions of Tuckett and Gagas have axial flow type impeller to draw air flow, Gagas teaches the backward blade is a design with a high efficiency, high cubic foot per minute (CFM) operation (paragraph 16). PNG media_image1.png 422 502 media_image1.png Greyscale In Reference to Claims 5-11 Tuckett discloses a dryer. The combination of Tuckett and Gagas as applied to Claim 1 does not teach the detail size or the power level each component. According to MPEP: 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 Claim 11 Tuckett discloses the adapter is a tree-like structure (As showed in Fig. 1) where the one or more outlets (Fig. 1, 11) are defined by the branches (As showed in Fig. 1) of the tree-like structure. In Reference to Claims 13-14 Tuckett discloses the tree-like structure. The combination of Tuckett and Gagas does not teach the detail size of opening. According to MPEP: 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 Claim 15 Tuckett teaches the adapter is formed as a coat hanger. (As showed in Fig. 1, the Tuckett discloses the mounting frame 12 with plurality of protrusions, it is obvious that those protrusion can be used to hang coat) Claim 2 is rejected under 35 U.S.C. 103 as being unpatentable over the combination of Tuckett and Gagas as applied to claim 1 above, and further in view of JP2010526579 (JP579) (The art rejection is made based on the respective English translation by PE2E). In Reference to Claim 2 Tuckett teaches a ceramic heat (Fig. 3, 22) in the adapter, and it is controlled by the controller. The combination of Tuckett and Gagas as applied to Claim 1 does not teach the heater is in the dryer housing. JP579 teaches a ceramic heater (Fig. 5, 17) provided between the inlet (Fig. 5, 2) and the outlet (Fig. 2, 6) in the housing (Fig. 5, 7) 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 JP579 into the combination of Tuckett and Gagas as applied to Claim 1. Doing so, would result in the heater being positioned in the blower housing as being taught by Tuckett, since JP579 teaches an integrated design, so the heater and blower can be replaced as a single unit. Claim 3 is rejected under 35 U.S.C. 103 as being unpatentable over the combination of Tuckett and Gagas as applied to claim 1 above, and further in view of US Patent 2008/0222909 to Picozza. In Reference to Claim 3 Tuckett discloses a dryer with a impeller type blower. The combination of Tuckett and Gagas as applied to Claim 1 does not teach an ionizer. Picozza teaches the blower unit can further function as an ionizer (Paragraph 34) 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 Picozza into the combination of Tuckett and Gagas as applied to Claim 1. Doing so, would result in an ionizer being included in the blower as being taught by Picozza. Both inventions of Tuckett and Picozza are in the same field of endeavor, Picozza teaches a an apparatus suitable for refreshing/cleaning, deodorizing, and/or drying cloth fabrics. Claim 4 is rejected under 35 U.S.C. 103 as being unpatentable over the combination of Tuckett and Gagas as applied to claim 1 above, and further in view of CN207795634 to Lin (The art rejection is made based on the respective English translation by PE2E). In Reference to Claim 4 Tuckett discloses the dryer assembly The combination of Tuckett and Gagas as applied to Claim 1 does not teach the driving details of the impeller. Lin teaches a centrifugal impeller driven by a DC brushless moto. 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 Lin into the combination of Tuckett and Gagas as applied to Claim 1. Doing so, would result in a DC brushless type motor being used to drive the centrifugal impeller, since a DC brushless type motor will improve the heat discharging efficiency. 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 2/26/26
Read full office action

Prosecution Timeline

Aug 30, 2023
Application Filed
Feb 26, 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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