Prosecution Insights
Last updated: May 29, 2026
Application No. 18/551,082

ATOMIZING NOZZLE ARRANGEMENT

Non-Final OA §102§103
Filed
Sep 18, 2023
Priority
Apr 16, 2021 — EU 21168960.9 +1 more
Examiner
BOECKMANN, JASON J
Art Unit
3752
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Danfoss A/S
OA Round
3 (Non-Final)
49%
Grant Probability
Moderate
3-4
OA Rounds
11m
Est. Remaining
78%
With Interview

Examiner Intelligence

Grants 49% of resolved cases
49%
Career Allowance Rate
483 granted / 987 resolved
-21.1% vs TC avg
Strong +29% interview lift
Without
With
+28.9%
Interview Lift
resolved cases with interview
Typical timeline
3y 7m
Avg Prosecution
40 currently pending
Career history
1045
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
78.0%
+38.0% vs TC avg
§102
11.0%
-29.0% vs TC avg
§112
3.6%
-36.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 987 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 . 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and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114.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 2/18/2026 has been entered. Claim Rejections - 35 USC § 102 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. Claim(s) 1-3, 5, 6, 8, 9, 13, 16-17 and 20 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Bosch (JPH0389085A). Regarding claim 1, Bosch shows a device comprising a housing (2) having an inlet (3), a valve seat ( 4), a valve element (8) interacting with the valve seat (fig), restoring means (10) acting on the valve element (fig), and an orifice (outlet of 7) wherein the valve element is fixed in a guidance element (9) such that the valve element is retained by the guidance element (fig, and the last paragraph Action and Effect) and wherein the guidance element which is guided in a bore (5) of the housing (fig). The examiner notes that the last paragraph of Action and Effect states that the sphere 8 and the support member 9 can be integrally formed from one component. When they are integrally formed as one component, the valve element is fixed to and retained by the guidance element Regarding claim 2, wherein at least one flow channel is formed between the guidance element and the housing (the figure shows a space between 9 and the wall 5). Regarding claims 3 and 16, the bore has a circular cross section and the guidance element has a circular cross section adapted to the circular cross section with a predetermined tolerance (fig). Regarding claims 5 and 17 the valve element comprises at least on a side facing the valve seat a symmetrically curved surface (fig) Regarding claim 6, the valve element comprises a spherical surface, at least in an area facing the valve seat (fig). Regarding claim 8, wherein the guidance element comprises a longitudinal channel (15, 16) extending from the valve element to the opposite side of the guidance element. Regarding claim 9, the valve element is frictionally or in a form locking way held in the guidance element (fig, 8 and 9 are touching so friction is playing a part in keeping them together). Regarding claim 12, a cone element (11) is arranged in the housing between the guidance element and the orifice, wherein the restoring means are arranged between the cone element and the guidance element (fig). Regarding claim 13, the restoring means are arranged in a recess in the cone element and/or in a recess in the guidance element (fig). Regarding claim 20, wherein the valve element is spherical, wherein the valve element is pressed into a receptacle in the guidance element (by the spring), and wherein the valve element is fixed in the receptable via friction (they are made as one element) 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. Claim(s) 7 is/are rejected under 35 U.S.C. 103 as being unpatentable over Bosch (JPH0389085A) in view of Sheng-guo et al. (CN 202283510 U) Regarding claim 7, Bosch shows all aspects of the applicant’s invention as in claim 1, but fails to disclose the valve element is made of an elastically deformable material. Sheng-guo et al shows a valve element (4-3) is made of an elastically deformable material (abstract). Therefore, it would have been obvious to one of ordinary skill in the art at the time the application was effectively field to use an elastically deformable valve element, in order to make the valve operate quieter and for a better seal. Claim(s) 21 and 22 and 23 is/are rejected under 35 U.S.C. 103 as being unpatentable over Bosch (JPH0389085A) in view of Nakamura et al. (4,926,902) Regarding claim 22, Bosch shows all aspects of the applicant’s invention as in claim 2, including at least one flow channel extends over the entire length of the guidance element (fig) but fails disclose the at least one flow channel comprises at least one groove and/or at least one flattened section extending over the axial length of the flow channel. Nakamura et al. teaches a floe channel 102 that allows for fluid flow. Therefore, it would have been obvious to one of ordinary skill in the art at the time the application was effectively field to add a flat section to form a larger fluid flow path, in order to increase fluid flow. Regarding claim 21, wherein the bore has a circular cross section and the guidance element has a circular cross section adapted to the circular cross section of the bore with a predetermined tolerance (fig). Regarding claim 23, Bosch shows a device comprising a housing (2) having an inlet (3), a valve seat ( 4), a valve element (8) interacting with the valve seat (fig), restoring means (10) acting on the valve element (fig), and an orifice (outlet of 7) wherein the valve element is fixed in a guidance element (9) such that the valve element is retained by the guidance element (fig, and the last paragraph Action and Effect) and wherein the guidance element which is guided in a bore (5) of the housing (fig), wherein the bore has a circular cross section and the guidance element has a circular cross section adapted to the circular cross section of the bore with a predetermined tolerance (fig), but fails to disclose wherein the guidance element has at least one flattened section on its circumference, the flattened section extending over the axial length of the guidance element. Nakamura et al. teaches a floe channel 102 that allows for fluid flow. Therefore, it would have been obvious to one of ordinary skill in the art at the time the application was effectively field to add a flat section to form a larger fluid flow path, in order to increase fluid flow. The flattened section will extend over the axial length of the guidance element since it is on the guidance element and takes up axial space. The examiner notes that the last paragraph of Action and Effect states that the sphere 8 and the support member 9 can be integrally formed from one component. When they are integrally formed as one component, the valve element is fixed to and retained by the guidance element Claim(s) 1-3, 5, 6, 9, 10-14, 16-17 and 20 is/are rejected under 35 U.S.C. 103 as being unpatentable over Schulze (3,147,924) in view of Bosch (JPH0389085A). Regarding claim 1, 12 and 14, Schulze shows a nozzle arrangement wherein the housing comprises a first housing part (1) and a second housing part (6), wherein the second housing part comprises an outer thread in engagement with an inner thread in the first housing part (fig 1), wherein the second housing part comprises an inlet channel (7) connected to the inlet and the valve seat is formed at an inner end of the inlet channel (1) or wherein the valve seat comprises a conical or curved form (fig 1), wherein the cone element (5) is held in the first housing part by means of the second housing part (fig 1). But fails to disclose wherein the valve element is fixed in a guidance element such that the valve element is retained by the guidance element and wherein the guidance element which is guided in a bore of the housing . Bosch teaches a guidance element (9) which is guided in a bore of the housing wherein the valve element is fixed in a guidance element such that the valve element is retained by the guidance element and wherein the guidance element which is guided in a bore of the housing. The examiner notes that the last paragraph of Action and Effect states that the sphere 8 and the support member 9 can be integrally formed from one component. When they are integrally formed as one component, the valve element is fixed to and retained by the guidance element Therefore, it would have been obvious to one of ordinary skill in the art at the time the application was effectively field to add the guidance element (62) of Wang to the valve of Schulze in order to generate little noise as taught by Bosch (first paragraph of Action and Effect) Regarding claim 1, the above combination shows a device comprising a housing (1, 6) having an inlet (inlet to 6), a valve seat ( on 6), a valve element (8 of Bosch) interacting with the valve seat (fig 1), restoring means (9) acting on the valve element (fig 1), and an orifice (3) wherein the valve element is fixed in a guidance element (9 of Bosch) such that the valve element is retained by the guidance element and wherein the guidance element which is guided in a bore of the housing and wherein the guidance element is guided in a bore (bore of 1) of the housing (fig 1). Regarding claim 12, a cone element (5) is arranged in the housing between the guidance element and the orifice, wherein the restoring means are arranged between the cone element and the guidance element (fig 1). Regarding claim 2, wherein at least one flow channel is formed between the guidance element and the housing (fig 1). Regarding claims 3 and 16, the bore has a circular cross section and the guidance element has a circular cross section adapted to the circular cross section with a predetermined tolerance (fig 1). Regarding claims 5, 17 and 18, the valve element comprises at least on a side facing the valve seat a symmetrically curved surface (fig 1) Regarding claim 6, the valve element comprises a spherical surface, at least in an area facing the valve seat (fig 1). Regarding claim 9, the valve element is frictionally or in a form locking way held in the guidance element (Bosch teaches the elements touching so friction is involved). Regarding claim 10, the housing comprises a first housing part (1) and a second housing part (6), wherein the second housing part comprises an outer thread (fig 31) in engagement with an inner thread in the first housing part (fig 1), wherein the second housing part comprises an inlet channel (7) connected to the inlet and the valve seat is formed at an inner end of the inlet channel (fig 1). Regarding claim 11, the valve seat comprises a conical or curved form (fig 1). Regarding claim 12, a cone element (5) is arranged in the housing between the guidance element and the orifice, wherein the restoring means are arranged between the cone element and the guidance element (fig 1). Regarding claim 13, the restoring means are arranged in a recess in the cone element (fig 1) and/or in a recess in the guidance element (Wang). Regarding claim 20, wherein the valve element is spherical, wherein the valve element is pressed into a receptacle in the guidance element, and wherein the valve element is fixed in the receptable via friction (since the valve element is touching the guidance element there is some force of friction involved) Claim(s) 7 is/are rejected under 35 U.S.C. 103 as being unpatentable over Schulze (3,147,924) as modified by Bosch (JPH0389085A) above, in view of Sheng-guo et al. (CN 202283510 U) Regarding claim 7, Schulze as modified above shows all aspects of the applicant’s invention as in claim 1, but fails to disclose the valve element is made of an elastically deformable material. Sheng-guo et al shows a valve element (4-3) is made of an elastically deformable material (abstract). Therefore, it would have been obvious to one of ordinary skill in the art at the time the application was effectively field to use an elastically deformable valve element, in order to make the valve operate quieter and for a better seal. Claim(s) 1, 2, 4-6, 8-14, 17 and 20 is/are rejected under 35 U.S.C. 103 as being unpatentable over Bertea (2,481,713) in view of Bosch (JPH0389085A) Regarding claim 1, Bertea shows a device comprising a housing (1, 7) having an inlet (4), a valve seat ( 11), a valve element (19) interacting with the valve seat (fig 1), restoring means (20) acting on the valve element (fig 1), and an orifice (9) wherein the valve element is fixed in a guidance element (17) which is guided in a bore (bore of 7) of the housing (fig 1). But fails to disclose that the valve element is retained in the guidance element. Bosch teaches a guidance element (9) which is guided in a bore of the housing wherein the valve element is fixed in a guidance element such that the valve element is retained by the guidance element and wherein the guidance element which is guided in a bore of the housing. The examiner notes that the last paragraph of Action and Effect states that the sphere 8 and the support member 9 can be integrally formed from one component. When they are integrally formed as one component, the valve element is fixed to and retained by the guidance element Therefore, it would have been obvious to one of ordinary skill in the art at the time the application was effectively field to have the valve element be connected and retained by the guidance element, in order to reduce the number of parts and to generate little noise as taught by Bosch (first paragraph of Action and Effect) Regarding claim 4, the guidance element has at least one flattened section (fig 4) on its circumference, the flattened section extending over the axial length of the guidance element . Regarding claim 2, wherein at least one flow channel is formed between the guidance element and the housing (fig 1). Regarding claims 5 and 17 , the valve element comprises at least on a side facing the valve seat a symmetrically curved surface (fig 1) Regarding claim 6, the valve element comprises a spherical surface, at least in an area facing the valve seat (fig 1). Regarding claim 8, wherein the guidance element comprises a longitudinal channel (between 24 and 22) extending from the valve element to the opposite side of the guidance element. Regarding claim 9, the valve element is frictionally or in a form locking way held in the guidance element (Bosch teaches the elements touching so friction is involved). Regarding claim 10, wherein the housing comprises a first housing part (1) and a second housing part (7), wherein the second housing part comprises an outer thread in engagement with an inner thread in the first housing part (fig 1), wherein the second housing part comprises an inlet channel connected to the inlet and the valve seat is formed at an inner end of the inlet channel (fig 1). Regarding claim 11, wherein the valve seat comprises a conical or curved form (fig 1). Regarding claim 12, wherein a cone element (conical surface of 7) is arranged in the housing between the guidance element and the orifice, wherein the restoring means are arranged between the cone element and the guidance element (fig 1). Regarding claim 13, wherein the restoring means are arranged in a recess in the cone element and/or in a recess in the guidance element (fig 1). Regarding claim 14, wherein the housing comprises a first housing part (1) and a second housing part (7), wherein the second housing part comprises an outer thread in engagement with an inner thread in the first housing part (fig 1), wherein the second housing part comprises an inlet channel connected to the inlet and the valve seat is formed at an inner end of the inlet channel or wherein the valve seat comprises a conical or curved form (fig 1), and wherein the cone element is held in the first housing part by means of the second housing part (fig 1). Regarding claim 20, wherein the valve element is spherical, wherein the valve element is pressed into a receptacle in the guidance element (by the spring), and wherein the valve element is fixed in the receptable via friction (since the valve element is touching the guidance element there is some force of friction involved) Response to Arguments Applicant’s arguments with respect to the pending claims 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. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to JASON J BOECKMANN whose telephone number is (571)272-2708. The examiner can normally be reached M-F 9am to 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 (571) 270-1814. 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. /JASON J BOECKMANN/Primary Examiner, Art Unit 3752 4/9/2026
Read full office action

Prosecution Timeline

Sep 18, 2023
Application Filed
Sep 17, 2025
Non-Final Rejection mailed — §102, §103
Dec 08, 2025
Response Filed
Dec 19, 2025
Final Rejection mailed — §102, §103
Feb 18, 2026
Request for Continued Examination
Feb 23, 2026
Response after Non-Final Action
Apr 14, 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

3-4
Expected OA Rounds
49%
Grant Probability
78%
With Interview (+28.9%)
3y 7m (~11m remaining)
Median Time to Grant
High
PTA Risk
Based on 987 resolved cases by this examiner. Grant probability derived from career allowance rate.

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