Prosecution Insights
Last updated: April 19, 2026
Application No. 18/254,180

DEVICE FOR FORMING TURBULENCE IN A LIQUID, ESPECIALLY FOR SOLID/LIQUID MIXTURES

Final Rejection §112
Filed
May 24, 2023
Examiner
NORRIS, CLAIRE A
Art Unit
1779
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Saati S P A
OA Round
2 (Final)
65%
Grant Probability
Favorable
3-4
OA Rounds
2y 11m
To Grant
94%
With Interview

Examiner Intelligence

Grants 65% — above average
65%
Career Allow Rate
540 granted / 827 resolved
At TC average
Strong +28% interview lift
Without
With
+28.2%
Interview Lift
resolved cases with interview
Typical timeline
2y 11m
Avg Prosecution
48 currently pending
Career history
875
Total Applications
across all art units

Statute-Specific Performance

§101
0.6%
-39.4% vs TC avg
§103
42.6%
+2.6% vs TC avg
§102
15.9%
-24.1% vs TC avg
§112
31.9%
-8.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 827 resolved cases

Office Action

§112
DETAILED ACTION Status of Claims: Claims 1-6 and 8-10 are pending. Claims 1-6 and 8-10 are amended. Claim 7 is canceled. This Action is Made Final. 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 12/29/2025, with respect to the rejection(s) of claim(s) 1-6 and 8-10 under 35 USC 102 and 103 have been fully considered and are persuasive. Therefore, the rejection has been withdrawn. However, upon further consideration, a new ground(s) of rejection is made in view of 35 USC 112 (a) and (b). The applicant argues that Long does not teach the woven fabric “is disposed inside said holes”. This argument is persuasive. Claim Objections Claims 1-6 and 8-10 are objected to because of the following informalities: The claims are inconsistent with regard to the inclusion of reference numbers after a structural feature of the claim. For example claim 1 states “holes (6)” (line 4), “said holes” (line 4), and “the holes (6)” (line 13) . 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. Claims 1-6 and 8-10 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. Claim 1 states “said holes are configured for the formation of turbulence of liquid”. There is no support in the original disclosure for the holes being configured for the formation of turbulence, only that the device is for forming turbulence. Claim 1 states “a portion of said at least one woven fabric (7) is disposed inside said holes”. There is no supp[ort for this limitation within the original disclosure. Figure 3 of the instant application shows the woven fabric placed over the holes, not inside the holes. Paragraph 12 of the published application states that the “woven fabric, incorporated or embedded in the thickness of the perforated plastic material support” does not support the woven fabric inside the holes, only embedded within an unspecific thickness of the support. The remaining claims contain new matter as they depend from claim 1. 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. Claims 1-6 and 8-10 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. Regarding Claim 1: The claim states “said holes are configured for the formation of turbulence”. It is not clear what structure is intended by this limitation. Specifically it is not clear if “configured for the formation of turbulence” is intended to limit the size or shape of the holes, is referring to the addition of the woven fabric, or something else. The specification does not clarify this limitation. Line 12 refers to “the woven fabric”. There is insufficient antecedent basis for this limitation within the claims. There is only support for “at least one woven fabric”. The claim states “woven fabric (7) is disposed inside said holes…the woven fabric which are located in correspondence with the holes…” It is not clear if “disposed inside” and “in correspondence with” the holes are limited to the same portion of the woven fabric or not. The claim refers to “the liquid filtrate”. There is insufficient antecedent basis for this limitation within the claims. Regarding Claim 3: The claim states “wherein said at least one support includes two supports (5) each of which is fixed on one face of said at least one woven fabric (7)”. It is not clear how the woven support can be inside the holes of one of the at least one supports and a second support of the two supports. Regarding Claim 8: The claim refers to “the meshes (8)”. There is insufficient support for this limitation within the claims. There is only support for “a mesh” The remaining claims are indefinite because they depend from an indefinite claim. Conclusion Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to CLAIRE A NORRIS whose telephone number is (571)272-5133. The examiner can normally be reached M-Th 7:30-5 F: 8-12. 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, Ramdhanie Bobby can be reached at 571-270-3240. 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. /CLAIRE A NORRIS/Primary Examiner, Art Unit 1779 2/12/2026
Read full office action

Prosecution Timeline

May 24, 2023
Application Filed
May 24, 2023
Response after Non-Final Action
May 30, 2023
Response after Non-Final Action
Jul 23, 2025
Non-Final Rejection — §112
Dec 29, 2025
Response Filed
Feb 12, 2026
Final Rejection — §112
Apr 09, 2026
Applicant Interview (Telephonic)
Apr 09, 2026
Examiner Interview Summary

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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
65%
Grant Probability
94%
With Interview (+28.2%)
2y 11m
Median Time to Grant
Moderate
PTA Risk
Based on 827 resolved cases by this examiner. Grant probability derived from career allow rate.

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