Prosecution Insights
Last updated: July 17, 2026
Application No. 18/360,016

Functional Gradients To Tailor Magnetic Fields

Non-Final OA §102§103
Filed
Jul 27, 2023
Priority
Aug 04, 2022 — provisional 63/370,463
Examiner
ROJAS, BERNARD
Art Unit
2837
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Board of Regents of the University of Texas System
OA Round
3 (Non-Final)
83%
Grant Probability
Favorable
3-4
OA Rounds
0m
Est. Remaining
91%
With Interview

Examiner Intelligence

Grants 83% — above average
83%
Career Allowance Rate
1083 granted / 1304 resolved
+15.1% vs TC avg
Moderate +8% lift
Without
With
+7.7%
Interview Lift
resolved cases with interview
Typical timeline
2y 6m
Avg Prosecution
37 currently pending
Career history
1335
Total Applications
across all art units

Statute-Specific Performance

§101
0.3%
-39.7% vs TC avg
§103
66.6%
+26.6% vs TC avg
§102
22.4%
-17.6% vs TC avg
§112
9.0%
-31.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1304 resolved cases

Office Action

§102 §103
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 . Election/Restrictions Newly submitted claims 20-26 are directed to an invention that is independent or distinct from the invention originally claimed for the following reasons: the claims are directed toward alternative embodiments of the magnetic force profile than originally claimed. Since applicant has received an action on the merits for the originally presented invention, this invention has been constructively elected by original presentation for prosecution on the merits. Accordingly, claims 20-26 are withdrawn from consideration as being directed to a non-elected invention. See 37 CFR 1.142(b) and MPEP § 821.03. To preserve a right to petition, the reply to this action must distinctly and specifically point out supposed errors in the restriction requirement. Otherwise, the election shall be treated as a final election without traverse. Traversal must be timely. Failure to timely traverse the requirement will result in the loss of right to petition under 37 CFR 1.144. If claims are subsequently added, applicant must indicate which of the subsequently added claims are readable upon the elected invention. Should applicant traverse on the ground that the inventions are not patentably distinct, applicant should submit evidence or identify such evidence now of record showing the inventions to be obvious variants or clearly admit on the record that this is the case. In either instance, if the examiner finds one of the inventions unpatentable over the prior art, the evidence or admission may be used in a rejection under 35 U.S.C. 103 or pre-AIA 35 U.S.C. 103(a) of the other invention. Claim Interpretation The following is a quotation of 35 U.S.C. 112(f): (f) Element in Claim for a Combination. – An element in a claim for a combination may be expressed as a means or step for performing a specified function without the recital of structure, material, or acts in support thereof, and such claim shall be construed to cover the corresponding structure, material, or acts described in the specification and equivalents thereof. The following is a quotation of pre-AIA 35 U.S.C. 112, sixth paragraph: An element in a claim for a combination may be expressed as a means or step for performing a specified function without the recital of structure, material, or acts in support thereof, and such claim shall be construed to cover the corresponding structure, material, or acts described in the specification and equivalents thereof. 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. This application includes one or more claim limitations that do not use the word “means,” but are nonetheless being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, because the claim limitation(s) uses a generic placeholder that is coupled with functional language without reciting sufficient structure to perform the recited function and the generic placeholder is not preceded by a structural modifier. Such claim limitation(s) is/are: “distributed in the apparatus according to a magnetic property profile and a force profile” in claim 1 recites a function with a corresponding structure for performing the function. Because this/these claim limitation(s) is/are being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, it/they is/are being interpreted to cover the corresponding structure described in the specification as performing the claimed function, and equivalents thereof. If applicant does not intend to have this/these limitation(s) interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, applicant may: (1) amend the claim limitation(s) to avoid it/them being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph (e.g., by reciting sufficient structure to perform the claimed function); or (2) present a sufficient showing that the claim limitation(s) recite(s) sufficient structure to perform the claimed function so as to avoid it/them being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph. 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. Claims 1-4, 6, 7 and 10 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Huang et al. [US 5,319,335]. Claim 1, Huang et al. discloses an apparatus, comprising: a number of magnetic materials [100] distributed in the apparatus according to a magnetic property profile [figures 3a and 3b] and a force profile [created by 101a, 102a, 2011 and 202a; col. 3 lines 36-48] comprising information associated with a number of forces acting on the number of magnetic materials, wherein the magnetic property profile comprises magnetic properties that are associated with the number of forces in the force profile for the number of magnetic materials. Claim 2, Huang et al. discloses the apparatus of claim 1, further comprising: a number of supporting devices [10, 20] located adjacent to the apparatus [100], wherein the number of supporting devices applies forces on the apparatus, and wherein the applied forces on the apparatus comprise at least one of mechanical force or magnetic force [. 3 lines 36-48]. Claim 3, Huang et al. discloses the apparatus of claim 2, wherein the number of supporting devices [10, 20] comprise at least one of permanent magnets, electromagnets [101a, 102a, 2011 and 202a], springs, and bearings. Claim 4, Huang et al. discloses the apparatus of claim 1, wherein the number of magnetic materials [100] comprise at least one of paramagnetic material, diamagnetic material, and ferromagnetic material [col. 3 lines 1-3]. Claim 6, Huang et al. discloses the apparatus of claim 1, wherein the distribution of magnetic materials is configured to form gradients in one dimension, two dimensions, or three dimensions [figures 3a and 3b], and wherein the distribution of magnetic materials create force profiles in one dimension, two dimensions, or three dimensions [figures 3a and 3b]. Claim 7, Huang et al. discloses the apparatus of claim 1, wherein volume fraction distribution of magnetic materials is configured to facilitate the magnetic property profile. Claim 10, Huang et al. discloses the apparatus of claim 1, wherein distribution of magnetic material [100] is configured to follow a single sawtooth, a double sawtooth, a multistep function, quadratic function [figures 3a and 3b; the oval shaped magnetic fields], or a linear function along a path. 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. Claims 5, 8 and 9 are rejected under 35 U.S.C. 103 as being unpatentable over Huang et al. [US 5,319,335]. Claim 5, Huang et al. discloses the apparatus of claim 1, wherein the number of magnetic materials comprise ferromagnetic material [col. 3 lines 1-3], but fails to teach that ferromagnetic particles suspended in a polymer matrix to form a ferromagnetic composite for the apparatus. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to change the composition of the ferromagnetic material in order to adjust the resulting properties of the magnetic field since it has been held to be within the general skill of a worker in the art to select a known material on the basis of its suitability for the intended use as a matter of obvious design choice. In re Leshin, 125 USPQ 416. Claim 8, Huang et al. discloses the apparatus of claim 7, wherein the number of magnetic materials comprise ferromagnetic material [col. 3 lines 1-3], but fails to teach that the ferromagnetic material have a geometry that varies in topology or porosity. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to change the composition of the ferromagnetic material in order to adjust the resulting properties of the magnetic field since it has been held to be within the general skill of a worker in the art to select a known material on the basis of its suitability for the intended use as a matter of obvious design choice. In re Leshin, 125 USPQ 416. Claim 9, Huang et al. discloses the apparatus of claim 7, wherein the number of magnetic materials comprise ferromagnetic material [col. 3 lines 1-3], but fails to teach that the ferromagnetic material has a truss-lattice geometry that varies in density. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to change the structure of the ferromagnetic material in order to adjust the resulting properties of the magnetic field since it has been held to be within the general skill of a worker in the art to select a known material on the basis of its suitability for the intended use as a matter of obvious design choice. In re Leshin, 125 USPQ 416. Response to Arguments Applicant’s arguments, filed 01/26/2026, with respect to claims 1-10 have been fully considered and are persuasive. The previous rejection(s) of claims 1-10 has been withdrawn. However, upon further consideration, a new ground(s) of rejection is made in view of Huang et al. [US 5,319,335] as applied above. Conclusion 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 Bernard Rojas whose telephone number is (571)272-1998. The examiner can normally be reached Mon. thru Fri. 7:00 am - 4:00 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, Shawki S Ismail can be reached at (571) 272-3985. 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. /BERNARD ROJAS/Primary Examiner, Art Unit 2837
Read full office action

Prosecution Timeline

Show 3 earlier events
Aug 15, 2025
Applicant Interview (Telephonic)
Aug 19, 2025
Examiner Interview Summary
Sep 16, 2025
Response Filed
Dec 17, 2025
Final Rejection mailed — §102, §103
Jan 15, 2026
Response after Non-Final Action
Jan 15, 2026
Notice of Allowance
Feb 03, 2026
Response after Non-Final Action
Jun 16, 2026
Non-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
83%
Grant Probability
91%
With Interview (+7.7%)
2y 6m (~0m remaining)
Median Time to Grant
High
PTA Risk
Based on 1304 resolved cases by this examiner. Grant probability derived from career allowance rate.

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