Prosecution Insights
Last updated: October 21, 2026
Application No. 18/164,107

FILTER ARRANGEMENTS

Non-Final OA §112
Filed
Feb 03, 2023
Priority
Aug 03, 2020 — provisional 63/060,133 +1 more
Examiner
POPOVICS, ROBERT J
Art Unit
1763
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Netafim Ltd.
OA Round
2 (Non-Final)
55%
Grant Probability
Moderate
2-3
OA Rounds
0m
Est. Remaining
78%
With Interview

Examiner Intelligence

Grants 55% of resolved cases
55%
Career Allowance Rate
419 granted / 757 resolved
-9.6% vs TC avg
Strong +23% interview lift
Without
With
+23.1%
Interview Lift
resolved cases with interview
Typical timeline
3y 5m
Avg Prosecution
20 currently pending
Career history
779
Total Applications
across all art units

Statute-Specific Performance

§101
0.5%
-39.5% vs TC avg
§103
30.5%
-9.5% vs TC avg
§102
20.7%
-19.3% vs TC avg
§112
42.2%
+2.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 757 resolved cases

Office Action

§112
DETAILED ACTION Election of 22 December 2025 Applicant’s election without traverse is again acknowledged: PNG media_image1.png 730 926 media_image1.png Greyscale Claims 11-14, 23 and 24, being drawn to non-elected species, are withdrawn. Claims 1-10,15-22 and 25-28 have been examined. Claim Rejections - 35 USC § 112(b) 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. Claims 1-10 and 15-22 are rejected under 35 U.S.C. 112(b), as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor, regards as the invention. PNG media_image2.png 439 758 media_image2.png Greyscale In claim 1 as amended, with respect to, “a core extending between opposing axial ends thereof”, it is unclear to what “thereof” refers. The “opposing axial ends” of the “flush chamber” or the “core”? The preamble of independent claim 1 specifies a “filter arrangement”. As written the scope of claim 1 and what is intended by this recitation are both unclear. Is the recitation “filter arrangement” intended to define a complete operative apparatus capable of filtering a fluid, or some fraction thereof. In this regard, the transitional phrase “comprising” appears at both line 1 and line 2 of claim 1 making it unclear where the body of the claim begins, thus rendering the scope of the claim unclear and indefinite. At line 3 of this claim a “flush chamber” is introduced. An individual skilled in the art would understand a “chamber” to be a void, volume, space or cavity. This language is not seen to define structure within the context of the claims. It is unclear what specific structure defines the claimed “flush chamber”. It is unclear what structure defines the boundaries of the “flush chamber”. It is unclear where the “flush chamber” begins or ends. Allowable Subject Matter Claims 25-28 are allowed. The incomprehensibility of claims 1-10 and 15-22 precludes application of prior art. Response to Arguments Applicant’s arguments or amendments with respect to those previous rejections no longer appearing above and drawing objections have been effective at removing them. Conclusion This action is NOT final. Any inquiry concerning this communication or earlier communications from the examiner should be directed to ROBERT JAMES POPOVICS whose telephone number is (571) 272-1164. The examiner can normally be reached from 10:00 AM - 6:00 PM. 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, JOSEPH DEL SOLE can be reached at (571) 272-11300. 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. /ROBERT J POPOVICS/ Primary Examiner Art Unit 1776
Read full office action

Prosecution Timeline

Show 2 earlier events
Dec 12, 2025
Examiner Interview (Telephonic)
Apr 04, 2026
Non-Final Rejection (signed) — §112
May 08, 2026
Non-Final Rejection mailed — §112
Jun 23, 2026
Interview Requested
Jun 30, 2026
Applicant Interview (Telephonic)
Jul 01, 2026
Examiner Interview Summary
Jul 20, 2026
Response Filed
Oct 14, 2026
Non-Final Rejection mailed — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12766444
FLUID STRAINER
2y 10m to grant Granted Oct 20, 2026
Patent 12767559
Filtering Device Arranged Outside Water Outlet Piece
3y 2m to grant Granted Oct 20, 2026
Patent 12766446
Filter Sector Assembly of a Disc Filter
2y 10m to grant Granted Oct 20, 2026
Patent 12752222
CANDLE FILTER DEVICE
3y 8m to grant Granted Oct 06, 2026
Patent 12734467
PASSIVE SELF-CLEANING FILTRATION METHOD AND APPARATUS
2y 9m to grant Granted Sep 15, 2026
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
55%
Grant Probability
78%
With Interview (+23.1%)
3y 5m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 757 resolved cases by this examiner. Grant probability derived from career allowance rate.

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