Prosecution Insights
Last updated: April 19, 2026
Application No. 18/464,324

CURING MACHINE

Non-Final OA §103
Filed
Sep 11, 2023
Examiner
ADDIE, RAYMOND W
Art Unit
3671
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Wirtgen GmbH
OA Round
1 (Non-Final)
81%
Grant Probability
Favorable
1-2
OA Rounds
2y 1m
To Grant
90%
With Interview

Examiner Intelligence

Grants 81% — above average
81%
Career Allow Rate
1274 granted / 1567 resolved
+29.3% vs TC avg
Moderate +8% lift
Without
With
+8.2%
Interview Lift
resolved cases with interview
Fast prosecutor
2y 1m
Avg Prosecution
43 currently pending
Career history
1610
Total Applications
across all art units

Statute-Specific Performance

§101
1.1%
-38.9% vs TC avg
§103
48.0%
+8.0% vs TC avg
§102
26.9%
-13.1% vs TC avg
§112
15.5%
-24.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1567 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 . 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. 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. 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. The factual inquiries for establishing a background for determining obviousness under 35 U.S.C. 103 are summarized as follows: 1. Determining the scope and contents of the prior art. 2. Ascertaining the differences between the prior art and the claims at issue. 3. Resolving the level of ordinary skill in the pertinent art. 4. Considering objective evidence present in the application indicating obviousness or nonobviousness. Claim(s) 1, 2, 4, 6-9, 14, 15 is/are rejected under 35 U.S.C. 103 as being unpatentable over Sipherd et al. US 6,497,531 in view of Heusinger et al. US 8,888,404. Sipherd et al. discloses a concrete curing machine comprising: A frame (12), a plurality of ground engaging units (24), a fluid reservoir (29); A sprayer assembly comprising: A carriage (16) including a hood (41) defining a shielded spray zone, a boom pipe (42) spray nozzles (44) and hose (64). Wherein spraying of controlled amounts of curing compound onto a concrete surface is provided for. Col. 2, lns. 10-16, Col. 4. What Sipherd et al. does not disclose is a control system. However, Heusinger et al. teach a spray device management system comprising:oHH A frame (2), a plurality of ground engaging elements (4), a sprayer (18), at least one nozzle (15.X), a pump (22), a plurality of valves (16.x), (24), a reservoir (23) and a control unit (19). Wherein the control unit settings can be adjusted by an operator to start a spraying function, stop a spraying function and begin a cleaning function. Further wherein, after receiving a command by the operator the control unit (19) detects an operating state of the at least one nozzle (15.x), such as at start up, and determines whether dry operation or wet operation is desired. See Figs. 5a-5c. Still further wherein wet operation can be deactivated and dry operation can actuated by the control unit (10). “The control unit (19) is thus arranged in….such a way that it automatically activates the cleaning function after deactivating wet operation. the control unit (10) controlling the pump (22) and control valves (16.x) to determine which nozzles (15.x) are in a spraying mode or cleaning mode. Cols. 9-11. Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to provide the roadway construction machine of Sipherd et al. with the control system taught by Heusinger et al. in order to prevent clogging of nozzles and control fluid expenditure. With respect to claims 14, 15 Sipherd et al. teach the use of an on-board reservoir (29) but do not disclose if it is replaceable or an IBC reservoir. However, it would be a matter of design choice as to what type of reservoir is used. Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to provide the roadway construction machine of Sipherd et al. with a replaceable IBC reservoir in order to facilitate premixed compositions. Claim(s) 16 is/are rejected under 35 U.S.C. 103 as being unpatentable over Sipherd et al. US 6,497,531 in view of Heusinger et al. US 8,888,404 as applied to claim 1 above, and further in view of Britton et al. US 3,129,890. Sipherd et al. in view of Heusinger et al. disclose essentially all that is claimed, except for the type of pump is used to send fluid through the nozzles. However, Britton et al. disclose a fluid dispensing vehicle (10) configured to spray a liquid onto a concrete surface using: A plurality of spray bars (60,63), nozzles (61) a reservoir (10t) and a centrifugal pump (33) for pressurizing the spray bars and nozzles. Col. 3, lns. 18-65. Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to provide the roadway construction machine of Sipherd et al. in view of Heusinger et al. with a centrifugal pump as taught by Britton et al. in order to apply up to 500 gallons per minute of fluid to the concrete surface. Claim(s) 17 is/are rejected under 35 U.S.C. 103 as being unpatentable over Sipherd et al. US 6,497,531 in view of Heusinger et al. US 8,888,404 as applied to claim 1 above, and further in view of Ito et al. US 3,129,890. Sipherd et al. in view of Heusinger et al. disclose essentially all that is claimed, except for the type of valves art used. However, Ito et al. teach a fluid dispensing machine comprising: A spray means (7), and an electromagnetic valve (78) used for opening and closing the spry means nozzle. Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to provide the roadway construction machine of Sipherd et al. in view of Heusinger et al. with electromagnetic valves as taught by Britton et al. in order to facilitate electronic control of the valves. Allowable Subject Matter Claims 3, 5, 10-13 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 9. Any inquiry concerning this communication or earlier communications from the examiner should be directed to RAYMOND W ADDIE whose telephone number is (571)272-6986. The examiner can normally be reached on m-f 7:30-12:30, then 6-9pm. 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, Chris Sebesta can be reached on 571-272-0547. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of an application may be obtained from the Patent Application Information Retrieval (PAIR) system. Status information for published applications may be obtained from either Private PAIR or Public PAIR. Status information for unpublished applications is available through Private PAIR only. For more information about the PAIR system, see http://pair-direct.uspto.gov. Should you have questions on access to the Private PAIR system, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you need help from a USPTO Customer Service Representative or access to the automated information system, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /RAYMOND W ADDIE/Primary Examiner, Art Unit 3671 3/12/2026
Read full office action

Prosecution Timeline

Sep 11, 2023
Application Filed
Mar 12, 2026
Non-Final Rejection — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12601120
OBTAINING PAVING MATERIAL MAT CHARACTERISTICS
2y 5m to grant Granted Apr 14, 2026
Patent 12594639
WALK BEHIND GRINDING TOOL WITH HORIZONTALLY ALIGNED GUIDES AND GRINDING DRUM
2y 5m to grant Granted Apr 07, 2026
Patent 12590425
INTELLIGENT REINFORCING SUPPORT FOR REINFORCED CONCRETE LOW-BOX GIRDERS AND METHOD FOR MINIMALLY INVASIVE REINFORCEMENT
2y 5m to grant Granted Mar 31, 2026
Patent 12583622
PASSENGER BOARDING BRIDGE
2y 5m to grant Granted Mar 24, 2026
Patent 12584283
GROUND COMPACTING MACHINE WITH A VIBRATION DAMPING ASSEMBLY
2y 5m to grant Granted Mar 24, 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
81%
Grant Probability
90%
With Interview (+8.2%)
2y 1m
Median Time to Grant
Low
PTA Risk
Based on 1567 resolved cases by this examiner. Grant probability derived from career allow rate.

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