Prosecution Insights
Last updated: October 25, 2026
Application No. 18/695,451

APPARATUS, SYSTEMS AND METHODS FOR USE IN FERROUS PARTICLE REMOVAL FROM A FLUID

Final Rejection §102§103
Filed
Mar 26, 2024
Priority
Sep 28, 2021 — GB 2113861.5 +1 more
Examiner
NORRIS, CLAIRE A
Art Unit
1779
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Romar International Limited
OA Round
2 (Final)
66%
Grant Probability
Favorable
3-4
OA Rounds
2m
Est. Remaining
94%
With Interview

Examiner Intelligence

Grants 66% — above average
66%
Career Allowance Rate
564 granted / 855 resolved
+1.0% vs TC avg
Strong +28% interview lift
Without
With
+27.9%
Interview Lift
resolved cases with interview
Typical timeline
2y 10m
Avg Prosecution
54 currently pending
Career history
920
Total Applications
across all art units

Statute-Specific Performance

§101
1.1%
-38.9% vs TC avg
§103
45.2%
+5.2% vs TC avg
§102
12.7%
-27.3% vs TC avg
§112
33.0%
-7.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 855 resolved cases

Office Action

§102 §103
DETAILED ACTION Status of Claims: Claims 1-7, 10-12, and 14-20 are pending. Claims 1, 3, 5, 7, 10-12, 14-16, 19 and 20 are amended. Claims 8, 9, and 13 are canceled. This Action is Made Fina. 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 filed 8/31/2026 have been fully considered but they are not persuasive. The applicant argues that Anesbug does not teach a coupling assembly with coupling members that are removably connected to each other for adjusting the span of the coupling assembly. Although the applicant is correct that as previously mapped (coupling members to wiper assemblies 20) Anesbug does not teach this limitation, Anesbug does teach a coupling assembly (two or mode modules comprising installation plates) (see pg. 8 lines 15-29) the coupling assembly being formed from a plurality of coupling members (installation plates) removably connected to each other for adjusting the span of the coupling assembly to fit different fluid receptacles (see pg. 8 lines 15-29). The 112 rejections are withdrawn in view of the amendments. Claim Rejections - 35 USC § 102 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. 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, 10-12 and 14-20 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Anesbug et al (WO 2021/010840). Regarding Claim 1: Anesbug teaches the modular frame for mounting at least one magnet apparatus in a fluid receptacle, the modular frame comprising: first and second engagement members (fixation means 34) for engaging the modular frame with a wall of the fluid receptacle (see pg. 13 lines 1-6, fig. 4); and a coupling assembly (series of installation plate assemblies together) (see pg. 8 lines 27-29) configured to span a part of the fluid receptacle, the coupling assembly being formed from a plurality of coupling members (installation plate assembly 30) (see pg. 8 lines 27-29, pg. 11 line 25) removably connected to each other for adjusting the span of the coupling assembly to fit different fluid receptacles, wherein at least some of the plurality of coupling member are configured to couple a magnet apparatus (magnet rod 11) of the at least one magnet apparatus to the modular frame such that the magnet apparatus is mountable in the fluid receptacle to attract and remove ferrous or magnetically attractable particles from a fluid volume in the fluid receptacle (see pg. 11 lines 15-22, fig. 3); and wherein each of the first and second engagement members are respectively removably connected to at least one coupling member of the plurality of coupling members (see pg. 12, lines 20-22, figs, 2- 4). Regarding Claim 2: Anesbug teaches the modular frame according to claim 1, wherein the fluid receptacle is a vessel, tank, fluid channel, fluid ditch, pipeline or flowline configured to receive, hold and/or contain liquid or slurry which has been removed from a wellbore (structure 40) (see pg. 13 lines 1-6). Regarding Claim 3: Anesbug teaches the modular frame according to claim 1, wherein the first and second engagement members are configured to engage the modular frame with the wall of the fluid receptacle by removably securing (attached with bolts) them to the wall (see pg. 13 lines 1-6). Regarding Claim 10: Anesbug teaches the modular frame according to claim 1, wherein the plurality of coupling members are identical to one another (“several modules like this”) (see pg. 8 line 27-29). Regarding Claim 11: Anesbug teaches the modular frame according to claim 1 wherein the plurality of coupling members comprise an aperture, projection, groove or recess (extending recess 22) configured to engage with a corresponding aperture, projection, groove or recess (upper stop element) (see pg. 11 lines 15-22, fig. 2) on the at least one magnet apparatus. Regarding Claim 12: Anesbug teaches the modular frame according to claim 1 wherein the plurality of coupling members comprise an aperture (slot 32) configured to receive the at least one magnet apparatus (see pg. 12 lines 20-23 fig. 3). Regarding Claim 14: Anesbug teaches the ferrous particle removal system comprising: a fluid receptacle for containing fluid contaminated with ferrous or magnetically attractable particles; a modular frame as claimed in claim 1; and at least one magnet apparatus (magnetic rod 11); and wherein the modular frame engages with a wall of the fluid receptacle, and wherein the at least one magnet apparatus is coupled to the modular frame such that it is mounted in the fluid receptacle to attract and remove ferrous or magnetically attractable particles from a fluid volume in the fluid receptacle (see pg. 11 lines 15-22, pg. 5, lines 19-21. fig. 4). Regarding Claim 15: Anesbug teaches the system as according to claim 14, comprising one or more additional modular frames configured to mount additional magnet apparatus in the fluid receptacle (two or mode modules in series) (see pg. 8 lines 27-30). Regarding Claim 16: Anesbug teaches the method of removing ferrous particles from a fluid contaminated with ferrous or magnetically attractable particles in a system according to claim 14; the method comprising: attracting ferrous or magnetically attractable particles in the fluid to ferrous particle removal system; and removing the ferrous or magnetically attractable particles from the fluid (se pg. 5 lines 19-21). Regarding Claim 17: Anesbug teaches the method according to claim 16, wherein removing the ferrous or magnetically attractable particles from the fluid comprises removing the at least one magnet apparatus and attached ferrous or magnetically attractable particles from the fluid receptacle, thereby separating the ferrous or magnetically attractable particles from the fluid (see pg. 9 lines 11-21). Regarding Claim 18: Anesbug teaches the method according to claim 17, comprising releasing the ferrous or magnetically attractable particles from the at least one magnet apparatus at a discharge location (rods are removed, therefore there is a discharge location) (see pg. 9 lines 11-21). Regarding Claim 19: Anesbug teaches the method of installing a modular frame for mounting at least one magnet apparatus in a fluid receptacle, the method comprising: assembling a modular frame from a kit of parts according to claim 1 by removably connecting the first and second engagement members to at least one of the plurality of coupling members; and - locating the assembled modular frame in or on the fluid receptacle by engaging a wall of the fluid receptacle such that the at least one magnet apparatus is mountable in the fluid receptacle to attract and remove ferrous or magnetically attractable particles from a fluid volume in the fluid receptacle (see pg. 13 lines 1-6, fig. 4). Regarding Claim 20: Anesbug teaches the method according to claim 19, further comprising coupling the at least one magnet apparatus to the modular frame (rod assemblies are attached) such that it is mounted in the fluid receptacle to attract and remove ferrous or magnetically attractable particles from a fluid volume in the fluid receptacle (see pg. 13 lines 14-16). Claim Rejections - 35 USC § 103 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. 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. The factual inquiries for establishing a background for determining obviousness under 35 U.S.C. 103 are summarized as follows: 1. Determining the scope and contents of the prior art. 2. Ascertaining the differences between the prior art and the claims at issue. 3. Resolving the level of ordinary skill in the pertinent art. 4. Considering objective evidence present in the application indicating obviousness or nonobviousness. This application currently names joint inventors. In considering patentability of the claims the examiner presumes that the subject matter of the various claims was commonly owned as of the effective filing date of the claimed invention(s) absent any evidence to the contrary. Applicant is advised of the obligation under 37 CFR 1.56 to point out the inventor and effective filing dates of each claim that was not commonly owned as of the effective filing date of the later invention in order for the examiner to consider the applicability of 35 U.S.C. 102(b)(2)(C) for any potential 35 U.S.C. 102(a)(2) prior art against the later invention. Claim(s) 4-7 is/are rejected under 35 U.S.C. 103 as being unpatentable over by Anesbug et al (WO 2021/010840) as applied to claim 1 above, and further in view of Wu (CN 104324802, English machine translation provided). Regarding Claim 4: Anesbug teaches the modular frame according to claim 1. Anesbug does not teach the first and second engagement members comprise elongated support members, configured to extend vertically in the fluid receptacle and be removably securable to the wall of the fluid receptacle. Wu teaches a modular frame for a magnetic assembly wherein first and second engagement members (guide rails) comprise elongated support members, configured to extend vertically in the fluid receptacle and be removably securable to the wall of the fluid receptacle (see para. 0014). Anesbug and Wu are analogous inventions in the art of modular frames for magnetic assemblies. It would have been obvious to one skilled in the art before the effective filing date of the invention to add the guide rails of Wu to the first and second engagement members of Anesbug, and further add the movable frame of Wu to the installation plate of Anesbug because makes mounting and dismounting very convenient (see Wu para. 0021), which is a desirable feature in Anesbug (see Anesbug pg. 9 lines 15-20). Regarding Claim 5: Anesbug, as modified, teaches the modular frame according to claim 4, wherein the elongated support members comprise a plurality of connection points (multiple elastic clamps) arranged over the direction of elongation, wherein the connection points are configured to enable at least one coupling member of the plurality of coupling members to be positioned at a selected vertical height in the fluid receptacle, and/or to enable the first and second engagement members to be removably secured to the wall of the fluid receptacle at a selected vertical height in the fluid receptacle (see Wu, Abstract). Regarding Claim 6: Anesbug, as modified, teaches the modular frame according to claim 4, further comprising horizontal securing members (fixation means 34) configured to rest on an upward facing surface of the fluid receptacle (see Anesbug pg. 13 lines 1-6, fig. 4). Regarding Claim 7: Anesbug, as modified, teaches the modular frame according to claim 1, wherein the first and second engagement members comprise horizontal securing members (fixation means 34) configured to rest on an upward facing surface or edge of the wall (see Anesbug pg. 13 lines 1-6, fig. 4). 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 9/28/2026
Read full office action

Prosecution Timeline

Mar 26, 2024
Application Filed
Jun 16, 2026
Non-Final Rejection mailed — §102, §103
Aug 31, 2026
Response Filed
Sep 30, 2026
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
66%
Grant Probability
94%
With Interview (+27.9%)
2y 10m (~2m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 855 resolved cases by this examiner. Grant probability derived from career allowance rate.

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