Prosecution Insights
Last updated: April 18, 2026
Application No. 18/571,372

Method for Adjusting an Actuation of a Proportional Valve for its Functional Operation as Part of a Fluid System

Non-Final OA §112
Filed
Dec 18, 2023
Examiner
RAEVIS, ROBERT R
Art Unit
2855
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Hydac Fluidtechnik GmbH
OA Round
3 (Non-Final)
83%
Grant Probability
Favorable
3-4
OA Rounds
2y 9m
To Grant
99%
With Interview

Examiner Intelligence

Grants 83% — above average
83%
Career Allow Rate
1543 granted / 1857 resolved
+15.1% vs TC avg
Strong +16% interview lift
Without
With
+15.6%
Interview Lift
resolved cases with interview
Typical timeline
2y 9m
Avg Prosecution
73 currently pending
Career history
1930
Total Applications
across all art units

Statute-Specific Performance

§101
1.7%
-38.3% vs TC avg
§103
41.2%
+1.2% vs TC avg
§102
5.9%
-34.1% vs TC avg
§112
37.2%
-2.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1857 resolved cases

Office Action

§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 . Claims 15-34 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. As to claims 15 and 25, “each characteristic curve represents a full cycle consistent of two branches” (italics added, last line) is confusing: Considering characteristic curve 16; it’s not clear how a characteristic curve 16 represents a “cycle” (claim 15). Consider that the “curve 16 for the flow Q” (Para 39, Pub) is a loop (as shown below), but how is a single loop representative of a “full cycle”? How is the term “full cycle” in any way representative of “curve 16” which is a loop representative of range? PNG media_image1.png 350 836 media_image1.png Greyscale Considering characteristic curve 16; it’s not clear how a such may consist of two branches? There do not appear to be branches in a curve in the shape of a loop. Consider that the term “branch” (specification) is unrelated to the any curve, and that the drawing by itself does not seem to provide for branches.1 Considering characteristic curve 17; it’s not clear how a characteristic curve 17 represents a “cycle” (claim 15). Consider that the “characteristic curve 17 for the fluid pressure p” (Para 39) is a generally straight line in Figure 2, and as such it’s unclear how such may represent a “cycle” (claim 15) any manner. How is the term “cycle” (claim 15) in any way consistent with a straight line? Considering characteristic curve 17; it’s not clear how a such may consist of two branches? There do not appear to be branches in a straight line. Consider that the term “branch” (specification) is unrelated to the any curve, and that the drawing by itself does not seem to provide for branches. Claims 15-34 are rejected under 35 U.S.C. 112(a) or 35 U.S.C. 112 (pre-AIA ), first paragraph, as failing to comply with the written description requirement. The claim(s) contains subject matter which was not described in the specification in such a way as to reasonably convey to one skilled in the relevant art that the inventor or a joint inventor, or for applications subject to pre-AIA 35 U.S.C. 112, the inventor(s), at the time the application was filed, had possession of the claimed invention. As to claims 15 and 25, the last line of each of those 2 claims is new matter either by itself, or in combination with remaining claim limitations. Any inquiry concerning this communication or earlier communications from the examiner should be directed to ROBERT R RAEVIS whose telephone number is (571)272-2204. The examiner can normally be reached on Mon to Fri from 8am to 4pm. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Kristina DeHerrera, can be reached at telephone number 303-297-4237. 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 Patent Center. Status information for published applications may be obtained from Patent Center. Status information for unpublished applications is available through Patent Center to authorized users only. Should you have questions about access to the USPTO patent electronic filing system, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). Examiner interviews are available via a variety of formats. See MPEP § 713.01. To schedule an interview, applicant is encouraged to use the USPTO Automated Interview Request (AIR) Form at https://www.uspto.gov/InterviewPractice. /ROBERT R RAEVIS/Primary Examiner, Art Unit 2855 1 That term “branch” appears in Paragraph 10 of Prior Art Reference Allerding 2005/0171668, and is potentially the source of the problematic term.
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Prosecution Timeline

Dec 18, 2023
Application Filed
Nov 21, 2025
Non-Final Rejection — §112
Dec 15, 2025
Response Filed
Jan 11, 2026
Final Rejection — §112
Mar 10, 2026
Response after Non-Final Action
Mar 23, 2026
Request for Continued Examination
Mar 24, 2026
Response after Non-Final Action
Apr 07, 2026
Non-Final Rejection — §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

3-4
Expected OA Rounds
83%
Grant Probability
99%
With Interview (+15.6%)
2y 9m
Median Time to Grant
High
PTA Risk
Based on 1857 resolved cases by this examiner. Grant probability derived from career allow rate.

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