Prosecution Insights
Last updated: July 17, 2026
Application No. 18/546,889

Nozzle System for Cleaning a Vehicle Part, In Particular a Window of a Motor Vehicle, and Cleaning Method

Non-Final OA §103
Filed
Aug 17, 2023
Priority
Feb 18, 2021 — DE 10 2021 103 869.3 +1 more
Examiner
ZHOU, QINGZHANG
Art Unit
3752
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Bayerische Motoren Werke Aktiengesellschaft
OA Round
3 (Non-Final)
68%
Grant Probability
Favorable
3-4
OA Rounds
4m
Est. Remaining
92%
With Interview

Examiner Intelligence

Grants 68% — above average
68%
Career Allowance Rate
568 granted / 842 resolved
-2.5% vs TC avg
Strong +24% interview lift
Without
With
+24.1%
Interview Lift
resolved cases with interview
Typical timeline
3y 3m
Avg Prosecution
47 currently pending
Career history
882
Total Applications
across all art units

Statute-Specific Performance

§101
0.7%
-39.3% vs TC avg
§103
73.1%
+33.1% vs TC avg
§102
12.5%
-27.5% vs TC avg
§112
8.7%
-31.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 842 resolved cases

Office Action

§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 . Continued Examination Under 37 CFR 1.114 A request for continued examination under 37 CFR 1.114, including the fee set forth in 37 CFR 1.17(e), was filed in this application after final rejection. Since this application is eligible for continued examination under 37 CFR 1.114, and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114. Applicant's submission filed on February 13, 2026 has been entered. Response to Amendment This Office Action is in response to the Applicant’s amendment filed on February 13, 2026. Claims 1-9 have been canceled. Claims 10 and 15 have been amended. Response to Arguments Applicant’s arguments with respect to claims 1 and 15 have been considered but are moot because the new ground of rejection does not rely on any reference applied in the prior rejection of record for any teaching or matter specifically challenged in the argument. Claim Rejections - 35 USC § 103 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 text of those sections of Title 35, U.S. Code not included in this action can be found in a prior Office action. Claims 10-17 are rejected under 35 U.S.C. 103 as being unpatentable over Hofmann et al. (US 7,878,421 B2) in view of Gagne et al. (US 7,798,411 B2). With regard to claim 10, Hofmann discloses a nozzle system (Fig. 3) for cleaning a vehicle part of a motor vehicle, comprising: at least one nozzle body (10) having a nozzle (28) for applying a cleaning liquid to the vehicle part; a fluid line arrangement (12) which is configured for connection to a fluid-based cleaning system of the motor vehicle in order to conduct the cleaning liquid to the nozzle body (Fig. 3); and an electrically conducting heating wire (14) which runs through the fluid line arrangement and through the nozzle body (Fig. 3). Hofmann does not disclose that wherein the heating wire has a first portion with a first cross section and a second portion with a second cross section, wherein the heating wire is electrically conductive through the entire first cross section and the entire second cross section, and wherein the first cross section is larger than the second cross section. Gagne teaches an electrically conducting heating wire (44), wherein the heating wire has a first portion (46/47) with a first cross section and a second portion (44) with a second cross section (Fig. 4), wherein the heating wire is electrically conductive through the entire first cross section and the entire second cross section (Fig. 4), and wherein the first cross section (46/47) is larger than the second cross section (44). 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 device of Hofmann, by replacing the heating wire of Hofmann with the heating wire including the first portion (46/47) and second portion (44) as taught by Gagne, since the contacts 46/47 are essential for supplying current and delivering heat through the heating wire. With regard to claim 11, the device of Hofmann as modified by Gagner discloses the invention as disclosed in claim 10 above. Hofmann in view of Gagner further discloses that the second cross section (44 of Gagner) is disposed within the nozzle body (Fig. 3 of Hofmann) and the first cross section (46/47 of Gagner) is disposed in a region of the fluid line arrangement that is outside of the nozzle body (Fig. 3 of Hofmann). With regard to claim 12, the device of Hofmann as modified by Gagner discloses the invention as disclosed in claim 10 above. Hofmann further discloses that the fluid line arrangement comprises a plurality of portions (Fig. 3) which connect a plurality of nozzle bodies (Fig. 3) which are spaced apart from one another to one another and wherein the plurality of portions of the fluid line arrangement (12) and the plurality of nozzle bodies (10) form a continuous fluid channel in which the heating wire (14) continuously extends (Fig. 3). With regard to claim 13, the device of Hofmann as modified by Gagner discloses the invention as disclosed in claim 12 above. Hofmann further discloses that the fluid line arrangement (Fig. 3) is formed by a hose system and wherein the plurality of nozzle bodies (10) are connected by individual hose portions(12, Fig. 3). With regard to claim 14, the device of Hofmann as modified by Gagner discloses the invention as disclosed in claim 11 above. They do not disclose that a diameter of the second portion of the heating wire is less than 1/5 of a diameter of the first portion of the heating wire. It is noted by the Examiner that the specification is devoid to provide any evidence indicating such ratio between the first and second portions of the heating wire is critical. On the other hand, the specification, in paragraph [0041] states “the diameter of the heating wire 18 in the region of the nozzle bodies 13 or in the respective portion 28 is advantageously less than 1/5, preferably less than 1/10, and particularly preferably less than 1/20, of its diameter in the regions 26 of the fluid line arrangement 15.” Hence, the claiming ratio is a matter of routine optimization. It would have been obvious to one of ordinary skill in the art before the effective filing date of the invention to modify the heating wire of Hofmann to exhibit the diameter of the second portion of the heating wire is less than 1/5 of the diameter of the first portion of the heating wire, since it has been held that where the general conditions of a claim are disclosed in the prior art, discovering the optimum or working ranges involves only routine skill in the art. In re Aller, 105 USPQ 233. See MPEP 2144.05.II. The Examiner notes that a particular parameter must be recognized as a result effective variable, in this case, that parameter is the diameter of the second portion is less than 1/5 of the diameter of the first portion which achieves the recognized result of optimizing the heat transfer between the nozzles and the heating wire, therefore, one of ordinary skill in the art before the effective filing date of the invention would have found the claimed range through routine experimentation. In re Antonie, 559 F.2d 618, 195 USPQ 6 (CCPA 1977). See also In re Boesch, 617 F.2d 272, USPQ 215 (CCPA 1980).15. With regard to claim 15-17, Since Hofmann in view of Gagner discloses all structure of the claimed invention in claims 10-14, in its use, the device of Hofmann as modified by Gagner will inherently perform all the method steps of claims 15-17. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to JOEL ZHOU whose telephone number is (571)270-1163. The examiner can normally be reached Mon-Fri 9AM-5PM. 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, ARTHUR HALL can be reached at 5712701814. 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. JOEL . ZHOU Primary Examiner Art Unit 3752 /QINGZHANG ZHOU/Primary Examiner, Art Unit 3752
Read full office action

Prosecution Timeline

Aug 17, 2023
Application Filed
Aug 17, 2023
Response after Non-Final Action
Jul 18, 2025
Non-Final Rejection mailed — §103
Oct 17, 2025
Response Filed
Nov 14, 2025
Final Rejection mailed — §103
Feb 13, 2026
Request for Continued Examination
Mar 09, 2026
Response after Non-Final Action
May 22, 2026
Non-Final Rejection mailed — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12667638
PLUG-IN FRAGRANCE DIFFUSER, AND SYSTEMS AND METHODS FOR USING SAME
5y 11m to grant Granted Jun 30, 2026
Patent 12665244
FIRE SUPPRESSION SYSTEM FOR LITHIUM-ION BATTERY CONTAINERS
3y 5m to grant Granted Jun 23, 2026
Patent 12654182
HYDRAULICALLY BALANCED WATER-STOP SWITCH MECHANISM AND SHOWER HEAD HAVING SAME
3y 0m to grant Granted Jun 16, 2026
Patent 12636671
DISPENSING SYSTEM AND A METHOD FOR ITS OPERATION, CLEANING UNIT AND DISPENSING UNIT
3y 4m to grant Granted May 26, 2026
Patent 12636397
Scent Diffusing System
3y 4m to grant Granted May 26, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

Strategy Recommendation AI-generated — please review before filing

Get a prosecution strategy drawn from examiner precedents, rejection analysis, and claim mapping.
Typically takes 5-10 seconds — AI-generated, attorney review required before filing

Prosecution Projections

3-4
Expected OA Rounds
68%
Grant Probability
92%
With Interview (+24.1%)
3y 3m (~4m remaining)
Median Time to Grant
High
PTA Risk
Based on 842 resolved cases by this examiner. Grant probability derived from career allowance rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month