Prosecution Insights
Last updated: July 17, 2026
Application No. 18/691,077

DRYING DEVICE FOR PROVIDING A PROCESS GAS FOR A DRYING SYSTEM

Non-Final OA §102
Filed
Mar 12, 2024
Priority
Sep 13, 2021 — DE 10 2021 123 631.2 +1 more
Examiner
WAN, DEMING
Art Unit
Tech Center
Assignee
Lübbers Anlagen-Und Umwelttechnik GmbH
OA Round
1 (Non-Final)
76%
Grant Probability
Favorable
1-2
OA Rounds
1m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 76% — above average
76%
Career Allowance Rate
710 granted / 930 resolved
+16.3% vs TC avg
Strong +42% interview lift
Without
With
+42.4%
Interview Lift
resolved cases with interview
Typical timeline
2y 5m
Avg Prosecution
26 currently pending
Career history
955
Total Applications
across all art units

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
80.9%
+40.9% vs TC avg
§102
7.0%
-33.0% vs TC avg
§112
10.4%
-29.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 930 resolved cases

Office Action

§102
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 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 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. Claim 13 is rejected under 35 U.S.C. 102(a)(1) as being anticipated by US Patent Publication 2006/0080974 to Ono. In Reference to Claim 13 Ono discloses a drying device for providing a process gas for a dryer plant, the drying device being associated with the dryer plant and with at least one external heat source, the drying device comprising: a heat pump unit for heating the process gas, the heat pump unit comprising at least one heat pump (Fig. 1, 120) which comprises a circuit fluid (Fig. 1, 160), an evaporator (Fig. 1, 150), a compressor (Fig. 1, 120), a gas cooler (Fig. 1, 130), a throttle unit (Fig. 1, 140), and a superheater (Fig. 1, 190) which is arranged between the evaporator and the compressor (as showed in Fig. 1), wherein, the superheater is, via at least one heat transfer fluid, connectable and/or heatable via the at least one external heat source which is/are spatially arranged outside the heat pump unit (As showed in Fig. 1) and/or free of a direct heat transfer from a heat-emitting side of the heat pump unit, so that, the circuit fluid is superheated via the superheater after exiting the evaporator so as to obtain a superheated circuit fluid, the superheated circuit fluid is compressed via the compressor so as to obtain a compressed superheated circuit fluid, and the compressed superheated circuit fluid is available to heat the process gas via the gas cooler. In Reference to Claim 15 Ono discloses at least one of the dryer plant (Fig. 1, 110) and the at least one external heat source (Fig. 1, as showed the heater 190 is an electric heater). Allowable Subject Matter Claims 14, 16-26 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 6/11/26
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Prosecution Timeline

Mar 12, 2024
Application Filed
Jun 12, 2026
Non-Final Rejection mailed — §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12680220
LAUNDRY DRYER
3y 8m to grant Granted Jul 14, 2026
Patent 12674271
LAUNDRY TREATING APPARATUS
3y 5m to grant Granted Jul 07, 2026
Patent 12669124
PUMP AND METHOD OF MANUFACTURING A SEALING
2y 7m to grant Granted Jun 30, 2026
Patent 12660903
HOLDER FOR HAIRDRYER
3y 5m to grant Granted Jun 23, 2026
Patent 12662770
CLOTHES DRYER
3y 6m to grant Granted Jun 23, 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 5m (~1m remaining)
Median Time to Grant
Low
PTA Risk
Based on 930 resolved cases by this examiner. Grant probability derived from career allowance rate.

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