Prosecution Insights
Last updated: August 14, 2026
Application No. 18/895,567

GROUND COMPACTOR

Non-Final OA §102§103
Filed
Sep 25, 2024
Priority
Sep 27, 2023 — DE 10 2023 126 192.4
Examiner
LEE, JONG SUK
Art Unit
Tech Center
Assignee
Hamm AG
OA Round
1 (Non-Final)
18%
Grant Probability
At Risk
1-2
OA Rounds
9m
Est. Remaining
46%
With Interview

Examiner Intelligence

Grants only 18% of cases
18%
Career Allowance Rate
23 granted / 125 resolved
-41.6% vs TC avg
Strong +27% interview lift
Without
With
+27.4%
Interview Lift
resolved cases with interview
Typical timeline
2y 8m
Avg Prosecution
22 currently pending
Career history
142
Total Applications
across all art units

Statute-Specific Performance

§101
0.5%
-39.5% vs TC avg
§103
56.2%
+16.2% vs TC avg
§102
26.0%
-14.0% vs TC avg
§112
13.9%
-26.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 125 resolved cases

Office Action

§102 §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 . Preliminary amendment filed 9/25/2024 has been entered. 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. (a)(2) the claimed invention was described in a patent issued under section 151, or in an application for patent published or deemed published under section 122(b), in which the patent or application, as the case may be, names another inventor and was effectively filed before the effective filing date of the claimed invention. Claims 1, 3-5, 7-10 and 12 are rejected under 35 U.S.C. 102 (a)(1) as being anticipated by Hoffman (EP 2927883, see the English translated document cited in the PTO-892). Regarding claim 1, Hoffman discloses a ground compactor for compacting ground material, comprising at least one compactor roller 1 rotatable on a machine frame about a roller rotation axis substantially orthogonal to a longitudinal direction of the compactor and a vertical direction of the compactor and extending substantially in a transverse direction of the compactor (see Figs. 1-2, under “Description” paragraphs after brief description of drawings), with an edge processing device 10 associated therewith for processing a side edge of compacted ground material (see Figs. 5-6), wherein the edge processing device 10 comprises an edge processing disk supported on a disk carrier/folding arm 4 for rotation about an edge processing rotation axis, wherein the edge processing rotation axis is set or can be set at a first angle of incidence with respect to the transverse direction of the compactor in the longitudinal di-rection of the compactor (see Figs. 6 and 12, paragraphs starting “As shown FiGS.1 to 8…into the tilt position”). Regarding claim 3, Hoffman discloses the first angle of incidence (as shown in Figs. 6 and 12) is variable with holding arm 4 (see paragraph starting “Figs. 1 to 15 show a road roller 1…..The holding arm 4 is connected to a piston rod 7, which is movable in a hydraulic cylinder 8…”). Regarding claim 4, Hoffman discloses the edge processing rotation axis, starting from the disk carrier 4, is set in the direction away from the at least one compactor roller 1 at the first angle of incidence with respect to the compactor transverse direction in a compactor working movement direction essentially parallel to the compactor longitudinal direction with a ball joint 11 (see Figs 5-6, 9 & 11-12, paragraph starting “As shown in FIGS. 1-8, the holding device….”). Regarding claim 5, Hoffman discloses the edge processing rotation axis is set or can be set at a second angle of incidence with respect to the compactor transverse direction in the compactor vertical direction with inherently manipulating a ball joint 11 (see Fig. 9. paragraph starting “As shown in FIGS. 1-8, the holding device….”). Regarding claim 7, Hoffman discloses the second angle of incidence is variable with inherently manipulating a ball joint 11 (see Fig. 9. paragraph starting “As shown in FIGS. 1-8, the holding device….”). Regarding claim 8, Hoffman discloses the edge processing rotation axis, starting from the disk carrier 4, is set in the direction away from the at least one compactor roller 1 at the second angle of incidence with respect to the compactor transverse direction in a compactor downward direction essentially parallel to the compactor vertical direction with inherently manipulating a ball joint 11 (see Fig. 9. paragraph starting “As shown in FIGS. 1-8, the holding device….”). Regarding claim 9, Hoffman discloses the edge processing disk10 is supported on the disk carrier 4 in a radially inner region (see Figs. 3-4, 7-8, 10 & 13) with respect to the edge processing rotation axis so as to be rotatable about the edge processing rotation axis and has a circular outer peripheral rim 2 concentric with the edge processing rotation axis. Regarding claim 10, Hoffman discloses the edge processing disk 10 has, on an edge processing side facing the at least one compactor roller 1, an edge processing surface which is non-orthogonal with respect to the edge processing rotation axis at least in regions, or/and in that the edge processing disk 10 has, on a deflecting side facing away from the at least one compactor roller 1, a deflecting surface which is non-orthogonal with respect to the edge processing rotation axis at least in regions (see Figs. 9-12, paragraph starting “In the embodiment of FIGS. 10 to 12….”). Regarding claim 12, Hoffman discloses the edge processing disk 10 has substantially the same thickness between the edge processing surface and the deflecting surface in all peripheral regions and radial regions (see Fig. 12). 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. Claims 2, 6 and 11 are rejected under 35 U.S.C. 103 as being unpatentable over Hoffman (EP 2927883). Regarding claims 2 and 6, although Hoffman fails to specifically teach the first angle of incidence is in the range of 5°-15° and the second angle of incidence is in the range of 25°-35°, it would have been obvious to one of ordinary skill in the art before the effective filing date to modify the range of the first and second angle of incidence in order to achieve the best workability and result while cutting the edge of the paving material. Regarding claim 11, Hoffman disclose the edge processing surface is straight in trapezoidal shaped cross section of the edge processing disk/ work tool 10 as shown in Figs. 12 and 15). However, Hoffman fails to specifically teach the edge processing surface is convexly curved at least in regions, or/and in that the deflecting surface is concavely curved at least in regions. Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date to modify the straight section of the disk with the curved section in order to smoothly remove the cutting paved material while the edge processing disk in use. Claim 13 is rejected under 35 U.S.C. 103 as being unpatentable over Hoffman (EP 2927883) in view of Shao et al (CN 215758431, see the English translated document cited in the PTO-892). Regarding claim 13, Hoffman fails to discloses or fairly teach a scraper for scraping off ground material adhering to the edge processing disk and overlapping it on its edge processing side. Shao et al disclose a compactor 100 comprising a roller and an edge processing disk/cutting wheel 301 supported by a disk carrier/rotating arm main body 312 and a scraper/cleaner 304 for scraping/cleaning off ground material adhering to the edge processing disk and overlapping it on its edge processing side facing the compactor 100 the scraper/cleaner is associated with the edge processing disk/cutting wheel 301 (see Figs. 1-2, paragraph under the subtitle “Specific implementation examples” starting “In the preferred embodiment of the utility model, the cutting mechanism 300 further comprises a cleaner 304;….. cleaner 304 can be a brush, also can be a flexible cleaning structure, and cleaner 304 connected with the rotating arm main body 312, when the rotating arm main body 312 close to the road surface, the cleaner 304 can clean the material in front of the cutting wheel 301…”). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date to attach the scraping/cleaning tool to Hoffman’s work tool as taught by Shao et al in order to improves the cutting precision and cutting quality while in use. Relevant Prior art The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. US 11377802 B2 Compaction machine US 20210140127 A1 Compaction machine used in a pressure control system for the pneumatic tire, has compaction element which is defining a first side and a second side arranged opposite to the first side, while pneumatic tire is raised relative to a work surface US 10662590 B1 Control system for controlling operation of edge forming tool e.g. edge cutter associated with compaction roller, moves edge forming tool from its current position to desired position based on received current position of tool US 20150184347 A1 EDGE CUTTING SYSTEM FOR COMPACTOR US 8500363 B1 Pneumatic substrate beneath compactor for use in paving endeavor system for compacting soil, has spray system including valves positioned fluidly between fluid supply and sprayers, and control device for detecting lowering of edge wheel US 3975055 A Appts for milling road surfaces has contrarotating cutter roller with material caught by pusher blades Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to Jong-Suk (James) Lee whose telephone number is (571) 272-7044. The examiner can normally be reached Monday thru Thursday 6AM- 4PM. 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, Allana Bidder can be reached on 571-272-5560. 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: httos://patentcenter.uspto.gov. Visit https:/Avww.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. /JONG-SUK (JAMES) LEE/Supervisory Patent Examiner, Art Unit 2875
Read full office action

Prosecution Timeline

Sep 25, 2024
Application Filed
Jul 22, 2026
Non-Final Rejection mailed — §102, §103 (current)

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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
18%
Grant Probability
46%
With Interview (+27.4%)
2y 8m (~9m remaining)
Median Time to Grant
Low
PTA Risk
Based on 125 resolved cases by this examiner. Grant probability derived from career allowance rate.

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