Prosecution Insights
Last updated: August 17, 2026
Application No. 18/888,280

MODULAR ELECTRIC POWER STEERING UNIT WITH BEVEL INPUT FOR FLEXIBLE PACKAGING IN COMMERCIAL VEHICLES

Non-Final OA §103§112
Filed
Sep 18, 2024
Examiner
WATKINS, NATHANIEL WILLIAM
Art Unit
3617
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
ZF Friedrichshafen AG
OA Round
1 (Non-Final)
71%
Grant Probability
Favorable
1-2
OA Rounds
1y 6m
Est. Remaining
96%
With Interview

Examiner Intelligence

Grants 71% — above average
71%
Career Allowance Rate
30 granted / 42 resolved
+19.4% vs TC avg
Strong +24% interview lift
Without
With
+24.4%
Interview Lift
resolved cases with interview
Typical timeline
3y 5m
Avg Prosecution
19 currently pending
Career history
62
Total Applications
across all art units

Statute-Specific Performance

§101
1.2%
-38.8% vs TC avg
§103
60.1%
+20.1% vs TC avg
§102
20.3%
-19.7% vs TC avg
§112
17.2%
-22.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 42 resolved cases

Office Action

§103 §112
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 § 112 The following is a quotation of 35 U.S.C. 112(b): (b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Claims 1 and 8 are rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. Claims 1 and 7 recite the limitations “the output shaft” in page 1, line 4 and page 2, lines 5-6, and “the input shaft” in page 1, line 8 and page 2, line 9. There is insufficient antecedent basis for these limitations in the claims. 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 1-4, 6, 8-11 and 13 are rejected under 35 U.S.C. 103 as being unpatentable over Volmering (US 20160129930) in view of Suzuki (US 4681182) and Schulz (US 20180072341). Regarding claim 1, Volmering teaches an steering system for a commercial vehicle, the system comprising: an input section having a vertical input end 42 configured to mechanically couple with a first end 75 of the input shaft 22 ([0036], Figs. 1 and 3-4), wherein a second end 24 of the input shaft 22 is configured to connect with a steering wheel assembly 28 of the vehicle ([0039], Figs. 1 and 3-4), wherein the input section further comprises: a bevel box 14 mechanically coupled to the vertical input end 42 of the input section using an adapter plate 34 ([0035]-[0036], Figs. 3-4), the bevel box 14 configured to receive the first end 75 of the input shaft 22 at an angle with respect to the vertical input end 42 of the input section ([0038], Figs. 1-4). Volmering is silent on the steering system being an electric power steering (EPS) system. However, Suzuki teaches that it is advantageous to use an electric power steering system to lessen fatigue on the driver (Col. 1, lines 11-21 of Suzuki). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the steering system of Volmering to be an electric power steering system as Suzuki teaches in order to advantageously reduce driver fatigue (Col. 1, lines 11-21 of Suzuki). While Volmering does not teach “a wheel assembly of the electric vehicle” or “a steering wheel assembly of the electric vehicle”, the question is what would result from the combined teachings of the references. See in re Keller, 642 F.2d 413, 425 (CCPA 1981). Here, that result would be the modified electric power steering system of Volmering/Suzuki providing the claimed assemblies within an electric vehicle. Volmering teaches an output section configured to mechanically couple with a steering gear 60, wherein the second end of the steering gear 60 is configured to connect with a wheel assembly 62 of the vehicle ([0039], Fig. 1). Volmering does not expressly teach an output shaft. However, Schulz teaches a steering assembly wherein an output section 22 of the steering column is configured to mechanically couple with a first end of the output shaft 24, wherein a second end of the output shaft 24 is configured to connect with a wheel assembly 26 of the vehicle ([0010], see annotated Fig. 1 of Schulz below). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the modified steering system of Volmering/Suzuki to have the output shaft of Schulz as part of the steering gear in order to advantageously mechanically steer the wheels as a backup when electrical communication of the EPS system is unavailable (Claim 1 of Schulz). Regarding claim 8, Volmering teaches a method for providing an steering system for a commercial vehicle (Abstract), the method comprising: providing an input section having a vertical input end 42 configured to mechanically couple with a first end 75 of the input shaft 22 ([0036], Figs. 1 and 3-4), wherein a second end 42 of the input shaft 22 is configured to connect with a steering wheel assembly 28 of the vehicle ([0039], Figs. 1 and 3-4), , mechanically coupling a bevel box 14 to the vertical input end 42 of the input section using an adapter plate 34 ([0035]-[0036], Figs. 3-4), the bevel box 14 configured to receive the first end 75 of the input shaft 22 at an angle with respect to the vertical input end 42 of the input section ([0038], Figs. 1-4). Volmering is silent on the steering system being an electric power steering (EPS) system. However, Suzuki teaches that it is advantageous to use an electric power steering system to lessen fatigue on the driver (Col. 1, lines 11-21 of Suzuki). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the steering system of Volmering to be an electric power steering system as Suzuki teaches in order to advantageously reduce driver fatigue (Col. 1, lines 11-21 of Suzuki). While Volmering does not teach “a wheel assembly of the electric vehicle” or “a steering wheel assembly of the electric vehicle”, the question is what would result from the combined teachings of the references. See in re Keller, 642 F.2d 413, 425 (CCPA 1981). Here, that result would be the modified electric power steering system of Volmering/Suzuki providing the claimed assemblies within an electric vehicle. Volmering teaches providing an output section configured to mechanically couple with a steering gear 60, wherein a second end of the steering gear 60 is configured to connect with a wheel assembly 62 of the vehicle ([0039], Fig. 1). Volmering does not expressly teach an output shaft. However, Schulz teaches a method for providing a steering system for a commercial vehicle comprising: providing an output section 22 configured to mechanically couple with a first end of the output shaft 24, wherein a second end of the output shaft 22 is configured to connect with a wheel assembly 26 of the vehicle ([0010], see annotated Fig. 1 of Schulz below). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the modified steering system of Volmering/Suzuki to have the output shaft of Schulz as part of the steering gear in order to advantageously mechanically steer the wheels as a backup when electrical communication of the EPS system is unavailable (Claim 1 of Schulz). Regarding claims 2 and 9 (same limitations, different dependencies), Volmering as modified teaches wherein the bevel box 14 comprises an input 40 to receive the first end 75 of the input shaft 22 ([0037], Fig. 3). Regarding claims 3 and 10 (same limitations, different dependencies), Volmering as modified teaches wherein the angle at which the input 40 of the bevel box 14 is configured to receive the first end 75 of the input shaft 22 is ninety degrees with respect to the vertical input end 42 of the input section ([0038], Figs. 1-4; the axis 43 of the vertical input end 42 is at an angle to the axis 41 of the input shaft 12; this angle is any value that is greater than 0° and less than 180°). Regarding claims 4 and 11 (same limitations, different dependencies), Volmering as modified teaches wherein the angle at which the input 40 of the bevel box 14 is configured to receive the first end 75 of the input shaft 22 is forty-five degrees with respect to the vertical input end 42 of the input section ([0038], Figs. 1-4; the axis 43 of the vertical input end 42 is at an angle to the axis 41 of the input shaft 12; this angle is any value that is greater than 0° and less than 180°). Regarding claims 6 and 13 (same limitations, different dependencies), Volmering as modified teaches wherein an intermediate shaft 18 connects the first end 75 of the input shaft 22 to the input 40 of the bevel box 14 ([0037], Figs. 3-4). Claims 7 and 14 are rejected under 35 U.S.C. 103 as being unpatentable Volmering in view of Suzuki and Schulz, and further in view of Ogata (JP H058741) Regarding claims 7 and 14 (same limitations, different dependencies), Volmering as modified teaches wherein a cardan shaft 56 connects first end of the input shaft to the intermediate shaft ([0013], Fig. 3) and that rotary movement is transferred from the intermediate shaft to the input of the bevel box through a splined connection ([0010], Figs. 4-4A). Volmering as modified does not teach a cardan shaft connecting the intermediate shaft to the input of the bevel box. However, Ogata teaches an electric power steering system in which a cardan shaft 11a connects an intermediate shaft 11 to an input of a bevel box 10 (Paragraph 26, Figs. 2 and 5 of Ogata). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to combine the universal joint of Ogata with the modified steering column of Volmering/et.al. and in combination, each element would have merely performed the same function as it did separately: transferring rotary power from the input shaft to the bevel box. This would advantageously allow for a range of connection angles between the bevel box and the intermediate shaft, making the steering system more adaptive. PNG media_image1.png 585 736 media_image1.png Greyscale Allowable Subject Matter Claim 5 and 12 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 The prior art made of record and not relied upon is considered pertinent to applicant's disclosure: US 20230085431 teaches an electric power steering apparatus with a bevel box connecting the steering input to the output shaft. US 20080211217 teaches a steering column with an input shaft comprised of multiple shafts interconnected by universal joints. US 20120043746 teaches an angularly adjustable steering column. US 20230242176 teaches a modular power steering system where a bevel is rotatable relative to an input shaft during assembly. Any inquiry concerning this communication or earlier communications from the examiner should be directed to NATHANIEL WILLIAM WATKINS whose telephone number is (703)756-4744. The examiner can normally be reached Monday-Thursday, 8:30 am -6:00 pm EST; Friday 8:30 am - 2:00 pm EST. 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, John Olszewski can be reached at 5712722706. 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. /N.W.W./Examiner, Art Unit 3617 /JOHN OLSZEWSKI/Supervisory Patent Examiner, Art Unit 3617
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Prosecution Timeline

Sep 18, 2024
Application Filed
Jul 24, 2026
Non-Final Rejection mailed — §103, §112 (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
71%
Grant Probability
96%
With Interview (+24.4%)
3y 5m (~1y 6m remaining)
Median Time to Grant
Low
PTA Risk
Based on 42 resolved cases by this examiner. Grant probability derived from career allowance rate.

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