Prosecution Insights
Last updated: October 23, 2026
Application No. 19/113,986

CONTACTLESS ENERGY TRANSMISSION DEVICE, KIT-OF-PARTS FOR MANUFACTURING A CONTACTLESS ENERGY TRANSMISSION DEVICE, ROTOR OF AN ELECTRIC MACHINE, ELECTRIC MACHINE, AND METHOD FOR ASSEMBLING A ROTOR

Non-Final OA §102§103
Filed
Mar 21, 2025
Priority
Sep 23, 2022 — DE 10 2022 124 447.4 +1 more
Examiner
PEREZ BORROTO, ALFONSO
Art Unit
2836
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Schaeffler Technologies AG & Co. KG
OA Round
1 (Non-Final)
74%
Grant Probability
Favorable
1-2
OA Rounds
1y 3m
Est. Remaining
92%
With Interview

Examiner Intelligence

Grants 74% — above average
74%
Career Allowance Rate
410 granted / 558 resolved
+5.5% vs TC avg
Strong +19% interview lift
Without
With
+19.0%
Interview Lift
resolved cases with interview
Typical timeline
2y 11m
Avg Prosecution
16 currently pending
Career history
579
Total Applications
across all art units

Statute-Specific Performance

§101
1.5%
-38.5% vs TC avg
§103
45.3%
+5.3% vs TC avg
§102
31.1%
-8.9% vs TC avg
§112
17.2%
-22.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 558 resolved cases

Office Action

§102 §103
DETAILED ACTION Status of the Application This office action is a non-final rejection in response to the filing of the application on 03/21/2025. 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 2. 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 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. 3. 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. 4. Claims 1,3-5,8-10 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Scott et al, US Patent (US 5,519,275). Regarding claim 1, Scott et al discloses a contactless energy transmission device (see Figs 1,7-10) for a rotor (112) of an electric machine (30), including a separately excited synchronous machine inside a drive train of a motor vehicle (column 1, lines 10-28), comprising: a hollow shaft (116) coupled to the rotor (112) of the electric machine (30) in a torque-transmitting manner (see Figs 1,7-10); and an inductive transmitter (120) having an energizable primary winding (142) and a secondary winding (140) spaced apart therefrom and electrically conductively coupled to a winding of the rotor (410) (see Figs 1-4); and rectifier electronics (720,720A) connected to the secondary winding, wherein the rectifier electronics (720,720A) are arranged inside the hollow shaft (116) and are connected thereto for conjoint rotation therewith (see Figs 1-8, column 6, lines 40-63, in addition, while features of an apparatus may be recited either structurally or functionally, claims directed to an apparatus must be distinguished from the prior art in terms of structure rather than function. In re Schreiber, 128 F.3d 1473, 1477-78, 44 USPQ2d 1429, 1431-32 (Fed. Cir. 1997) (The absence of a disclosure in a prior art reference relating to function did not defeat the Board's finding of anticipation of claimed apparatus because the limitations at issue were found to be inherent in the prior art reference); see also In re Swinehart, 439 F.2d 210, 212-13, 169 USPQ 226, 228-29 (CCPA 1971); In re Danly, 263 F.2d 844, 847, 120 USPQ 528, 531 (CCPA 1959). "Apparatus claims cover what a device is, not what a device does." Hewlett-Packard Co. v. Bausch & Lomb Inc., 909 F.2d 1464, 1469, 15 USPQ2d 1525, 1528 (Fed. Cir. 1990) (emphasis in original) (see MPEP 2114)). Furthermore, it has been held that a claim containing a "recitation with respect to the manner in which a claimed apparatus is intended to be employed does not differentiate the claimed apparatus from a prior art apparatus" if the prior art apparatus teaches all the structural limitations of the claim. Exparte Masham, 2 USPQ2d 1647 (Bd. Pat. App. & Inter. 1987). (See MPEP 2114)). Regarding claim 3, Scott et al discloses the contactless energy transmission device of claim 1, wherein the rectifier electronics (720) have a circuit board with electronic components arranged thereon (824A-D, Fig 8), the circuit board has a substantially disc-shaped or circular disc-shaped or cylindrical ring-shaped contour (see Figs 1-8 and column 7, lines 40-66; particularly Fig 7-8 discloses that the rectifier is arranged in a suitable manner inside the hollow pivot bearing support 116, preferably fastened along the longitudinal axis of the pivot bearing support 116 such that the rectifier 720 rotates with the rotary portion 122). Regarding claim 4, Scott et al discloses the contactless energy transmission device of claim 3, wherein the circuit board is connected to the hollow shaft in a materially-bonded, force-fitting or form-fitting manner for conjoint rotation (see Figs 1-8; particularly Fig 7-8 discloses that the rectifier is arranged in a suitable manner inside the hollow pivot bearing support 116, preferably fastened along the longitudinal axis of the pivot bearing support 116 such that the rectifier 720 rotates with the rotary portion 122). Regarding claim 5, Scott et al discloses the contactless energy transmission device of claim 1, wherein the rectifier electronics (720) are accommodated in a housing that has a substantially disc-shaped or circular disc-shaped or cylindrical ring-shaped contour and the housing is connected to the hollow shaft in a materially-bonded, force-fitting or form-fitting manner for conjoint rotation (see Figs 1-8 and column 7, lines 40-66, one ordinary skill in the art would appreciate that the annular disk-like or cylindrical ring-link contour would be considered a normal design since Figs 2A-4 discloses annular disk-like or cylindrical ring-link shapes). Regarding claim 8, Scott et al discloses a rotor (112) of an electric machine (30), including a separately excited synchronous machine inside a drive train of a motor vehicle, comprising a contactless energy transmission device (120) according to claim 1 (see Figs 1-8, particularly Figs 7-8). Regarding claim 9, Scott et al discloses an electric machine (30), including a separately excited synchronous machine inside a drive train of a motor vehicle (column 1, lines 10-28), comprising a rotor according to claim 8 (see Figs 1,7-10). Regarding claim 10, Scott et al discloses a method for assembling a rotor (112) of an electric machine (30) (see Figs 1,7-10), including a separately excited synchronous machine inside a drive train of a motor vehicle (column 1, lines 10-28), the method comprising: providing a hollow shaft (116) coupled to the rotor (112) of the electric machine (30) in a torque-transmitting manner (see Figs 1,7-10); and providing an inductive transmitter (120) having an energizable primary winding (142) and a secondary winding (140) which is spaced apart therefrom and is electrically conductively coupled to a winding of the rotor (410) (see Figs 1-4); providing rectifier electronics (720,720A) coupled to the secondary winding (140); inserting the rectifier electronics (720,720A) into the hollow shaft (116) so that the rectifier electronics (720) are connected to the hollow shaft (116) for conjoint rotation; and connecting the rectifier electronics (720,720A) to the secondary winding (140) of the inductive transmitter (120) (see Figs 1-8, column 6, lines 40-63). 5. Claim 7 is rejected under 35 U.S.C. 102(a)(1) as being anticipated by Stout et al, US Patent Application Publication (US 2005/0218740 A1). Regarding claim 7, Stout et al discloses a kit-of-parts (see Figs 2-6) for manufacturing a contactless energy transmission device (202,206,402,406) for a rotor (208,408) of an electric machine (200,400), including a separately excited synchronous machine inside a drive train of a motor vehicle (par. [0021]), the kit-of-parts comprising: an inductive transmitter (202,206,402,406,Figs 2 and 4) having an energizable primary winding (202,402) and a secondary winding (206,406) spaced apart therefrom and is electrically conductively coupled to a winding of the rotor (208) (see Fig 2 and par. [0013]-[0015]); a hollow shaft (212,412) coupled to the rotor (208) of the electric machine in a torque-transmitting manner (see Figs 4-5; par. [0016]); and rectifier electronics (218,218b,418) connected to the secondary winding and positioned inside the hollow shaft (212,412) and connected thereto for conjoint rotation therewith (see Figs 4-5; par. [0016]-[0017]). Claim Rejections - 35 USC § 103 6. 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. 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. 7. Claims 2,6 are rejected under 35 U.S.C. 103 as being unpatentable over Kume et al, US PG-Publication (US 2019/0359074 A1) in view of Stout et al, US Patent Application Publication (US 2005/0218740 A1). Regarding claim 2, Scott et al discloses the contactless energy transmission device of claim 1; Scott et al does not clearly discloses wherein the secondary winding of the inductive transmitter is arranged inside the hollow shaft and is connected thereto for conjoint rotation therewith, while the primary winding of the inductive transmitter is positioned therein in a torsionally rigid manner relative to the hollow shaft. However, Stout et al is an analogous art pertinent to the problem to be solved in this application in which discloses a low profile electric generator having a short axial length. A cylindrical rotor body defines an interior cavity and is coupled to a driveshaft along the axis of the cylindrical body (see Figs 2-6) and further discloses wherein the secondary winding (206,406) of the inductive transmitter is arranged inside the hollow shaft (212,412) and is connected thereto for conjoint rotation therewith, while the primary winding (202,402) of the inductive transmitter is positioned therein in a torsionally rigid manner relative to the hollow shaft (212,412) (see Figs 2-6; par. [0013]-[0018]). Thus, it would have been obvious to one ordinary skill in the art before the effective filing date of the claimed invention to modify Scott et al with the teaching of Stout et al by including wherein the secondary winding of the inductive transmitter is arranged inside the hollow shaft and is connected thereto for conjoint rotation therewith, while the primary winding of the inductive transmitter is positioned therein in a torsionally rigid manner relative to the hollow shaft in order to provide a generator that has a low profile or axial length in order to fit such generator into a limited space, or to limit the overhung moment of the generator (Stout et al, par. [0002]). Regarding claim 6, Scott et al discloses the contactless energy transmission device of claim 1; Scott et al does not clearly discloses wherein the hollow shaft is designed so that a cooling fluid can flow through it in such a way that heat generated by the rectifier electronics can be dissipated by means of the cooling fluid when the contactless energy transmission device is in operation. However, Stout et al is an analogous art pertinent to the problem to be solved in this application in which discloses a low profile electric generator having a short axial length. A cylindrical rotor body defines an interior cavity and is coupled to a driveshaft along the axis of the cylindrical body (see Figs 2-6) and further discloses wherein the hollow shaft (212,412) is designed so that a cooling fluid can flow through it in such a way that heat generated by the rectifier electronics (308) can be dissipated by means of the cooling fluid when the contactless energy transmission device is in operation (see Figs 2-6, par. [0009],[0020]; claims 4-6,16-18,20). Thus, it would have been obvious to one ordinary skill in the art before the effective filing date of the claimed invention to modify Scott et al with the teaching of Stout et al by including wherein the hollow shaft is designed so that a cooling fluid can flow through it in such a way that heat generated by the rectifier electronics can be dissipated by means of the cooling fluid when the contactless energy transmission device is in operation in order to maintain performance, high efficiency, reduces mechanical stress and fatigue and provide reliability over the generator’s service life. Examiner Note 8. The examiner cites particular columns and lines numbers in the references as applied to the claims above for the convenience of the applicant. Although the specified citations are representative of the teachings in the art and are applied to the specific limitations within the individual claim, other passages and figures may apply as well. It is respectfully requested that, in preparing responses, the applicant fully consider the references in their entirety as potentially teaching all or part of the claimed invention, as well as the context of the passage as taught by the prior art or disclosed by the examiner. Conclusion 9. The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Please see the cited prior art in the PTO-892 form attached. Any inquiry concerning this communication or earlier communications from the examiner should be directed to ALFONSO PEREZ BORROTO whose telephone number is (571) 270-1714. The examiner can normally be reached on M-F (9am-4pm). If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Taelor Kim can be reached on (571) 270-7166. 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 would like assistance 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. /ALFONSO PEREZ BORROTO/ Primary Examiner, Art Unit 2836
Read full office action

Prosecution Timeline

Mar 21, 2025
Application Filed
Sep 22, 2026
Non-Final Rejection mailed — §102, §103 (current)

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Prosecution Projections

1-2
Expected OA Rounds
74%
Grant Probability
92%
With Interview (+19.0%)
2y 11m (~1y 3m remaining)
Median Time to Grant
Low
PTA Risk
Based on 558 resolved cases by this examiner. Grant probability derived from career allowance rate.

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