Prosecution Insights
Last updated: July 17, 2026
Application No. 18/429,662

MicroRefinery System and Process for Recycling of Electronic Waste and Other Mixed Material Streams

Non-Final OA §102
Filed
Feb 01, 2024
Priority
Mar 24, 2020 — provisional 62/994,030 +2 more
Examiner
MACKEY, PATRICK HEWEY
Art Unit
3653
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Determinant Materials Inc.
OA Round
1 (Non-Final)
84%
Grant Probability
Favorable
1-2
OA Rounds
0m
Est. Remaining
97%
With Interview

Examiner Intelligence

Grants 84% — above average
84%
Career Allowance Rate
768 granted / 920 resolved
+31.5% vs TC avg
Moderate +13% lift
Without
With
+13.3%
Interview Lift
resolved cases with interview
Fast prosecutor
2y 1m
Avg Prosecution
34 currently pending
Career history
946
Total Applications
across all art units

Statute-Specific Performance

§101
1.0%
-39.0% vs TC avg
§103
41.1%
+1.1% vs TC avg
§102
37.0%
-3.0% vs TC avg
§112
17.0%
-23.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 920 resolved cases

Office Action

§102
DETAILED ACTION The Amendment filed 5/8/2026 has been entered. 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 . Election/Restrictions In view of the Amendment filed 5/8/2026, the Requirement for Restriction mailed 3/16/2026 has been withdrawn. Claims 1-20 have been examined on the merits. Priority This application is a Continuation of U.S. Application Ser. No. 17/209,902, filed March 23, 2021, now U.S. Patent 11,925,938. Claim Interpretation The claims in this application are given their broadest reasonable interpretation using the plain meaning of the claim language in light of the specification as it would be understood by one of ordinary skill in the art. The broadest reasonable interpretation of a claim element (also commonly referred to as a claim limitation) is limited by the description in the specification when 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, is invoked. As explained in MPEP § 2181, subsection I, claim limitations that meet the following three-prong test will be interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph: (A) the claim limitation uses the term “means” or “step” or a term used as a substitute for “means” that is a generic placeholder (also called a nonce term or a non-structural term having no specific structural meaning) for performing the claimed function; (B) the term “means” or “step” or the generic placeholder is modified by functional language, typically, but not always linked by the transition word “for” (e.g., “means for”) or another linking word or phrase, such as “configured to” or “so that”; and (C) the term “means” or “step” or the generic placeholder is not modified by sufficient structure, material, or acts for performing the claimed function. Use of the word “means” (or “step”) in a claim with functional language creates a rebuttable presumption that the claim limitation is to be treated in accordance with 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph. The presumption that the claim limitation is interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, is rebutted when the claim limitation recites sufficient structure, material, or acts to entirely perform the recited function. Absence of the word “means” (or “step”) in a claim creates a rebuttable presumption that the claim limitation is not to be treated in accordance with 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph. The presumption that the claim limitation is not interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, is rebutted when the claim limitation recites function without reciting sufficient structure, material or acts to entirely perform the recited function. Claim limitations in this application that use the word “means” (or “step”) are being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, except as otherwise indicated in an Office action. Conversely, claim limitations in this application that do not use the word “means” (or “step”) are not being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, except as otherwise indicated in an Office action. Double Patenting The nonstatutory double patenting rejection is based on a judicially created doctrine grounded in public policy (a policy reflected in the statute) so as to prevent the unjustified or improper timewise extension of the “right to exclude” granted by a patent and to prevent possible harassment by multiple assignees. A nonstatutory double patenting rejection is appropriate where the conflicting claims are not identical, but at least one examined application claim is not patentably distinct from the reference claim(s) because the examined application claim is either anticipated by, or would have been obvious over, the reference claim(s). See, e.g., In re Berg, 140 F.3d 1428, 46 USPQ2d 1226 (Fed. Cir. 1998); In re Goodman, 11 F.3d 1046, 29 USPQ2d 2010 (Fed. Cir. 1993); In re Longi, 759 F.2d 887, 225 USPQ 645 (Fed. Cir. 1985); In re Van Ornum, 686 F.2d 937, 214 USPQ 761 (CCPA 1982); In re Vogel, 422 F.2d 438, 164 USPQ 619 (CCPA 1970); In re Thorington, 418 F.2d 528, 163 USPQ 644 (CCPA 1969). A timely filed terminal disclaimer in compliance with 37 CFR 1.321(c) or 1.321(d) may be used to overcome an actual or provisional rejection based on nonstatutory double patenting provided the reference application or patent either is shown to be commonly owned with the examined application, or claims an invention made as a result of activities undertaken within the scope of a joint research agreement. See MPEP § 717.02 for applications subject to examination under the first inventor to file provisions of the AIA as explained in MPEP § 2159. See MPEP § 2146 et seq. for applications not subject to examination under the first inventor to file provisions of the AIA . A terminal disclaimer must be signed in compliance with 37 CFR 1.321(b). The filing of a terminal disclaimer by itself is not a complete reply to a nonstatutory double patenting (NSDP) rejection. A complete reply requires that the terminal disclaimer be accompanied by a reply requesting reconsideration of the prior Office action. Even where the NSDP rejection is provisional the reply must be complete. See MPEP § 804, subsection I.B.1. For a reply to a non-final Office action, see 37 CFR 1.111(a). For a reply to final Office action, see 37 CFR 1.113(c). A request for reconsideration while not provided for in 37 CFR 1.113(c) may be filed after final for consideration. See MPEP §§ 706.07(e) and 714.13. The USPTO Internet website contains terminal disclaimer forms which may be used. Please visit www.uspto.gov/patent/patents-forms. The actual filing date of the application in which the form is filed determines what form (e.g., PTO/SB/25, PTO/SB/26, PTO/AIA /25, or PTO/AIA /26) should be used. A web-based eTerminal Disclaimer may be filled out completely online using web-screens. An eTerminal Disclaimer that meets all requirements is auto-processed and approved immediately upon submission. For more information about eTerminal Disclaimers, refer to www.uspto.gov/patents/apply/applying-online/eterminal-disclaimer. Claims 1, 2, 6, 7, 10, 12, 13, 14, and 18 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1, 6, 11, 12, and 16 of U.S. Patent No.11,925,938. Although the claims at issue are not identical, they are not patentably distinct from each other because the claims of this application completely encompass the claims of the patent. One could not make or use the invention recited in patent without literally infringing the claims of this application. Specifically: claim 1 of the patent corresponds to claims 1, 2, 6, 7, and 10 of this application; claim 6 of the patent corresponds to claims 7 and 18 of this application; claim 11 of the patent corresponds to claim 12 of this application; claim 12 of the patent corresponds to claim 13 of this application; and claim 16 of the patent corresponds to claim 14 of this application. 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. (a)(2) the claimed invention was described in a patent issued under section 151, or in an application for patent published or deemed published under section 122(b), in which the patent or application, as the case may be, names another inventor and was effectively filed before the effective filing date of the claimed invention. Claim(s) 1, 2, 4, 6, 7 and 14 is/are rejected under 35 U.S.C. 102(a)(2) as being anticipated by Lind et al. (US 11,517,913). Lind discloses a system for refining mixed material streams/method for refining mixed material streams, comprising: a receptacle (12) for receiving an input stream; a mill (34) grinding the input stream to reduce particle size and output a milled stream; a first filter (35) having first filtration holes which filter the milled stream to remove a first portion having particle sizes larger than the first filtration holes (see at least col. 14, lines 25-37) and to output as a sifted stream a second portion having particle sizes smaller than the first filtration holes (see at least col. 12, lines 4-16); a second filter (38) having second filtration holes which are smaller than the first filtration holes of the first filter, the second filtration holes filtering the sifted stream to output a filtered stream (see at least col. 12, lines 39-40); and a density separator (20) receiving the filtered stream and receiving a liquid (see col. 12, lines 48-55), wherein the filtered stream combined with the liquid forms a mixture, and wherein the density separator separates the mixture into at least a first output and a second output having a greater density than the first output (see at least col. 12, lines 48-65). The first filter comprises a screen (see at least col. 12, line 5). The first filter is configured to automatically remove the first portion for collection (see at least col. 14, lines 25-35). The second filter comprises a mesh (see at least col. 12, lines 28-30). The density separator is an electrodynamic shaker table, a servo-hydraulic shaker table, a mechanical shaker table, a panning device, a blue bowl concentrator, a miller table, a sluice, a spiral concentrator, or a device designed to produce vibrations (see at least col. 12, lines 48-65). . Allowable Subject Matter Claims 3, 5, 8, 9, 11, 15-17, 19, and 20 objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Fritz et al. (US 2016/0129454) and Valerio (US 2017/0209870) disclose systems in which material is fed to consecutive filters and then to a density separator. Any inquiry concerning this communication or earlier communications from the examiner should be directed to PATRICK HEWEY MACKEY whose telephone number is (571)272-6916. The examiner can normally be reached M - F 9-5. 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, Michael McCullough can be reached at 571-272-7805. 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. /PATRICK H MACKEY/ Primary Examiner, Art Unit 3653
Read full office action

Prosecution Timeline

Feb 01, 2024
Application Filed
Jun 10, 2026
Non-Final Rejection mailed — §102 (current)

Precedent Cases

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

1-2
Expected OA Rounds
84%
Grant Probability
97%
With Interview (+13.3%)
2y 1m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 920 resolved cases by this examiner. Grant probability derived from career allowance rate.

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