Prosecution Insights
Last updated: April 19, 2026
Application No. 18/847,258

ULTRA-HIGH PRECISION PNEUMATIC FORCE SERVO SYSTEM AND INTELLIGENT CONTROL PARAMETER OPTIMIZATION METHOD THEREFOR

Non-Final OA §112
Filed
Sep 15, 2024
Examiner
NGUYEN, DUSTIN T
Art Unit
3745
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Jiangsu University
OA Round
2 (Non-Final)
72%
Grant Probability
Favorable
2-3
OA Rounds
2y 7m
To Grant
90%
With Interview

Examiner Intelligence

Grants 72% — above average
72%
Career Allow Rate
332 granted / 460 resolved
+2.2% vs TC avg
Strong +18% interview lift
Without
With
+18.0%
Interview Lift
resolved cases with interview
Typical timeline
2y 7m
Avg Prosecution
33 currently pending
Career history
493
Total Applications
across all art units

Statute-Specific Performance

§101
0.9%
-39.1% vs TC avg
§103
37.8%
-2.2% vs TC avg
§102
26.1%
-13.9% vs TC avg
§112
32.7%
-7.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 460 resolved cases

Office Action

§112
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 . Response to Arguments Applicant’s arguments, see remarks, filed 02/03/2026, with respect to the objections and rejections are partially persuasive as applicant’s amendments to the claims remedies some but not all of the issues. See below for updated objections and rejections. Upon further consideration, a new ground(s) of rejection is made in view of further U.S.C. 112 issues. Claim Objections Claim 1 objected to because of the following informalities: Claim 1, fourth to last line, “the industrial personal computer 1” should read --the industrial personal computer (1)-- Reference characters corresponding to elements recited in the detailed description of the drawings and used in conjunction with the recitation of the same element or group of elements in the claims should be enclosed within parentheses so as to avoid confusion with other numbers or characters which may appear in the claims. See MPEP § 608.01(m). Appropriate correction is required. Claim Rejections - 35 USC § 112 The following is a quotation of the first paragraph of 35 U.S.C. 112(a): (a) IN GENERAL.—The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor or joint inventor of carrying out the invention. The following is a quotation of the first paragraph of pre-AIA 35 U.S.C. 112: The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor of carrying out his invention. Claim 1-10 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. Claims 1 and some dependent claims recite “frictionless cylinder”. However, even if the piston within the cylinder floats on a cushion of air that prevents physical contact between the walls of the cylinder and the piston, the air causes friction in the form of air resistance (fluid friction). Therefore one of ordinary skill in the art would not know how to make applicant’s “frictionless cylinder” because it is not possible to have a frictionless system as best understood in light of modern physics. Applicant’s disclosure does not The dependent claims fail the written description requirement because they depend from claim 1 that fails the written description requirement. Claims 1-10 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 enablement requirement. The claim(s) contains subject matter which was not described in the specification in such a way as to enable one skilled in the art to which it pertains, or with which it is most nearly connected, to make and/or use the invention. Claims 1 and some dependent claims recite “frictionless cylinder”. However, even if the piston within the cylinder floats on a cushion of air that prevents physical contact between the walls of the cylinder and the piston, the air causes friction in the form of air resistance (fluid friction). Therefore one of ordinary skill in the art would not know how to make applicant’s “frictionless cylinder” because it is not possible to have a frictionless system as best understood in light of modern physics. Claims 1-10 are nonenabling because one having ordinary skill in the art could not make or use the invention from the disclosure coupled with information known in the art without undue experimentation. An analysis of the Wands factors reveals that the following factors weigh against enablement: Wands factors E. The level of predictability in the art. Fluid mechanics are known in the art and one of ordinary skill would expect air resistance to exist and would not know how to make a frictionless cylinder. F. The amount of direction provided by inventor. The disclosure of the present application does not appear to provide any direction as to how a frictionless cylinder is made. G. The existence of working examples. There do not appear to be frictionless devices in existence. In re Wands, 858 F.2d 731 (Fed. Cir. 1988); MPEP § 2164.01 (a). It is noted that the determination of undue experimentation is reached by weighing all the factors and that no single factor is dispositive (MPEP 2164.01 (a)). Upon the weight of all of these factors, one of ordinary skill in the art would not have been enabled by the originally filed disclosure to make and/or use the claimed invention without undue experimentation and therefore claims 1-10 are not enabled. Claims 2-10 depend from claim 1 and therefore also fail the enablement requirement. 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. The claims are generally narrative and indefinite, failing to conform with current U.S. practice. They appear to be a literal translation into English from a foreign document and are replete with grammatical and idiomatic errors. Claims 6, 9-10 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. Claim 6 recites “giving an extremely poor fitness value to the particle”. The term “extremely poor fitness value” in claim 6 is a relative term which renders the claim indefinite. The term “extremely poor fitness value” is not defined by the claim, the specification does not provide a standard for ascertaining the requisite degree, and one of ordinary skill in the art would not be reasonably apprised of the scope of the invention. It is unclear what would or would not constitute a “extremely poor fitness value” because the specification does not discuss what constitutes “an extremely poor fitness value”. Claim 6, line 4 and 7 recite “sentencing the particle to “death”. This appears to be idiomatic English and should be removed from the claims. Claim 9 and 10 recites the limitation "the method according to claim 1" in line 1. There is insufficient antecedent basis for this limitation in the claim. Claims 9 and 10 should probably depend from claim 4 which recites antecedent basis for “the method”. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to Dustin T Nguyen whose telephone number is (571)270-0163. The examiner can normally be reached M - F: 8:00am - 4:30pm. 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, Nathaniel E. Wiehe can be reached at (571) 272-8648. 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. /DUSTIN T NGUYEN/ Primary Examiner, Art Unit 3745 April 3, 2026
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Prosecution Timeline

Sep 15, 2024
Application Filed
Oct 30, 2025
Non-Final Rejection — §112
Feb 03, 2026
Response Filed
Apr 03, 2026
Non-Final Rejection — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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Patent 12589489
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Patent 12560185
WORKING CYLINDER, IN PARTICULAR A HYDRAULIC WORKING CYLINDER
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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

2-3
Expected OA Rounds
72%
Grant Probability
90%
With Interview (+18.0%)
2y 7m
Median Time to Grant
Moderate
PTA Risk
Based on 460 resolved cases by this examiner. Grant probability derived from career allow rate.

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