Prosecution Insights
Last updated: August 18, 2026
Application No. 18/363,524

MAGNET ASSEMBLY FOR ORIENTATION AND ORIENTATION METHOD FOR ACTIVE MATERIAL LAYER USING THE SAME

Final Rejection §103
Filed
Aug 01, 2023
Priority
Aug 08, 2022 — RE 10-2022-0098754
Examiner
CHAU, LISA N
Art Unit
1785
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Samsung SDI Co., Ltd.
OA Round
4 (Final)
25%
Grant Probability
At Risk
5-6
OA Rounds
1y 3m
Est. Remaining
42%
With Interview

Examiner Intelligence

Grants only 25% of cases
25%
Career Allowance Rate
127 granted / 508 resolved
-40.0% vs TC avg
Strong +17% interview lift
Without
With
+17.0%
Interview Lift
resolved cases with interview
Typical timeline
4y 4m
Avg Prosecution
44 currently pending
Career history
568
Total Applications
across all art units

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
56.9%
+16.9% vs TC avg
§102
11.9%
-28.1% vs TC avg
§112
24.3%
-15.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 508 resolved cases

Office Action

§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 . Response to Amendment Examiner acknowledges amended Claims 1 and 3, canceled Claim 4, and withdrawn Claims 7 and 8 in the response filed on 4/7/2026. Response to Arguments Applicant’s arguments with respect to Claim 1-3, 5, and 6 have been considered but are moot because the new ground of rejection does not rely on any reference applied in the prior rejection of record for any teaching or matter specifically challenged in the argument. Claim Rejections - 35 USC § 103 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 1-3, 5, and 6 are rejected under 35 U.S.C. 103 as being unpatentable over US Pub. No. 20150320168 (“Hoffman”), in view of “1/2 x 1/8 x 1/8 Inch Neodymium Rare Earth Bar Magnets N48 (50 Pack).” totalElement, totalelement.com/collections/block-magnets/products/1-2-x-1-8-x-1-8-inch-neodymium-rare-earth-bar-magnets-n48-50-pack ( “Totalelement”), and in view of US Pub. No. 20200388832 (“Kwon et al.”). With regards to Claim 1, Hoffman teaches a magnet assembly (100) comprising a metal plate (101), a lower layer (103) attached to the metal plate and comprising a plurality of permanent magnets that form a matrix, and an upper layer (104) on the lower layer and comprising a plurality of permanent magnets that form a matrix. (Abstract, Figs. 1, 3, 4B, and 5, [0025], [0027], [0028], and [0030]-[0034]). Hoffman teaches adjacent ones of the plurality of permanent magnets that form the matrix of the respective lower layer and upper layer contact each other across an area of respective faces of the adjacent ones of the plurality of permanent magnets that form the matrix of the respective lower or upper layer that face each other. Hoffman, however, does not teach the contact area to be substantially an entire area of respective faces of the adjacent ones. Hoffman does not explicitly discloses an upper layer form a same matrix as the matrix in the lower layer, and a ratio of a length of one of the plurality of permanent magnets with respect to a sum of thicknesses of the lower layer and upper layer is 3:1 to 1:1. While Hoffman magnet assembly is capable of magnetizing a magnetic substance due to it comprising a magnetically hard material [0028], Hoffman does not teach its magnet assembly orients an active material for a secondary battery. Totalelement teaches a magnet assembly comprising a lower layer comprising a plurality of permanent magnets that form a matrix, and an upper layer on the lower layer and comprising a plurality of permanent magnets that form a same matrix as the matrix of the lower layer. Totalelement recognizes that permanent magnets comes in different forms of shape, including but not limited to, disc shapes and rectangular type shapes. Totalelement further recognizes that each permanent magnet has a dimension of 1/2 x 1/8 inch or 1/8 x 1/8 inch (Pages 2-3). Based on Hoffman’s magnet assembly as shown in Fig. 1 and a conventional shape and dimension of a permanent magnet as demonstrated by Totalelement, the prior art of record discloses adjacent ones of the plurality of permanent magnets that form the matrix of the respective lower layer and upper layer contact each other across substantially an entire area of respective faces of the adjacent ones of the plurality of permanent magnets that form the matrix of the respective lower or upper layer that face each other, and a ratio of length of one of the plurality of permanent magnets with respect to a sum of thicknesses of the lower layer and the upper layer is 2. It would have been obvious to one of ordinary skill in the art prior to the effective filing date of the claimed invention to have the rectangular type shape and ratio as claimed in Hoffman’s magnet assembly in view of their great industrial and business applications (Page 1). Examiner further notes that it has been held that a mere change in shape without affecting the functioning of the part would have been within the level of ordinary skill in the art, In re Dailey et al., 149 USPQ 47; Eskimo Pie Corp. v. Levous et al., 3 USPQ 23. Kwon et al. teaches a permanent magnet assembly (77) that orients an active material for a secondary battery (Fig. 2 and [0065]). It would have been obvious to one of ordinary skill in the art prior to the effective filing date of the claimed invention to use Hoffman’s permanent magnet assembly in a wide range of applications across various fields, such as to orient an active material for a secondary battery, in order to it be more versatile and be more commercially successful. With regards to Claim 2, Hoffman teaches an attractive force that attaches the lower layer to the metal plate is greater than a repulsive force generated by a neighboring in a column direction of the matrix that extends from the lower layer to the upper layer. That is, Hoffman teaches respective polarities of the plurality of permanent magnets of the lower layer are alternately provided in a row direction, and all the magnetic poles are attracting to each other in a column direction that extends from the lower layer to the upper layer. Thus, a repulsive force generated in the column direction of the matrix that extends from the lower layer to the upper layer is zero or negligible (Abstract, Figs. 1, 3, 4B, and 5, [0025], [0027], [0028], and [0030]-[0034]). With regards to Claim 3, Hoffman teaches a magnet assembly (100) comprising a metal plate (101), a lower layer (103) attached to the metal plate and comprising a plurality of permanent magnets that form a matrix, and an upper layer (104) on the lower layer and comprising a plurality of permanent magnets that form a matrix. Hoffman teaches respective polarities of the plurality of permanent magnets of the lower layer and the upper layer are alternately provided in a row direction of the matrix (Abstract, Figs. 1, 3, 4B, and 5, [0025], [0027], [0028], and [0030]-[0034]). Hoffman’s magnet assembly (100) is formed by an array of stacked magnets. While the figures demonstrate a 3x2 array, the array size can be decreased or increased in either dimensions [0027]. Therefore, a 1x2 or 1x3 array, for example, is within the purview of Hoffman. Such structures produce respective polarities of the plurality of permanent magnets of the lower layer and the upper layer are equally provided in a column direction that is perpendicular to a thickness direction of the magnet assembly. It would have been obvious to one of ordinary skill in the art prior to the effective filing date of the claimed invention to optimize the array size in order to tailor the intended use as needed ([0002] and [0027]). Hoffman teaches adjacent ones of the plurality of permanent magnets that form the matrix of the respective lower layer and upper layer contact each other across an area of respective faces of the adjacent ones of the plurality of permanent magnets that form the matrix of the respective lower or upper layer that face each other. Hoffman, however, does not teach the contact area to be substantially an entire area of respective faces of the adjacent ones. While Hoffman magnet assembly is capable of magnetizing a magnetic substance due to it comprising a magnetically hard material [0028], Hoffman does not teach its magnet assembly orients an active material for a secondary battery. Totalelement teaches a magnet assembly comprising a lower layer comprising a plurality of permanent magnets that form a matrix, and an upper layer on the lower layer and comprising a plurality of permanent magnets that form a same matrix as the matrix of the lower layer. Totalelement recognizes that permanent magnets comes in different forms of shape, including but not limited to, disc shapes and rectangular type shapes (Pages 2-3). Based on Hoffman’s magnet assembly as shown in Fig. 1 and a conventional shape of a permanent magnet as demonstrated by Totalelement, the prior art of record discloses adjacent ones of the plurality of permanent magnets that form the matrix of the respective lower layer and upper layer contact each other across substantially an entire area of respective faces of the adjacent ones of the plurality of permanent magnets that form the matrix of the respective lower or upper layer that face each other. It would have been obvious to one of ordinary skill in the art prior to the effective filing date of the claimed invention to have the rectangular type shape in Hoffman’s magnet assembly in view of their great industrial and business applications (Page 1). Examiner further notes that it has been held that a mere change in shape without affecting the functioning of the part would have been within the level of ordinary skill in the art, In re Dailey et al., 149 USPQ 47; Eskimo Pie Corp. v. Levous et al., 3 USPQ 23. Kwon et al. teaches a permanent magnet assembly (77) that orients an active material for a secondary battery (Fig. 2 and [0065]). It would have been obvious to one of ordinary skill in the art prior to the effective filing date of the claimed invention to use Hoffman’s permanent magnet assembly in a wide range of applications across various fields, such as to orient an active material for a secondary battery, in order to it be more versatile and be more commercially successful. With regards to Claim 5, Hoffman teaches the plurality of permanent magnets in the lower layer and the upper layer neighboring each other in the column direction contact with each other ([0025] and [0030]). With regards to Claim 6 Hoffman teaches the upper layer and the lower layer are combined by attractive force of the plurality of permanent magnets in the lower layer and the upper layer (Fig. 4B and [0025]). 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 LISA CHAU whose telephone number is (571)270-5496. The examiner can normally be reached Monday-Friday 11 AM-730 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, Mark Ruthkosky can be reached at (571) 272-1291. 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. /LC/ Lisa Chau Art Unit 1785 /Holly Rickman/Primary Examiner, Art Unit 1785
Read full office action

Prosecution Timeline

Show 2 earlier events
Jun 20, 2025
Response Filed
Sep 18, 2025
Final Rejection mailed — §103
Nov 17, 2025
Response after Non-Final Action
Dec 16, 2025
Request for Continued Examination
Dec 19, 2025
Response after Non-Final Action
Jan 07, 2026
Non-Final Rejection mailed — §103
Apr 07, 2026
Response Filed
Jun 29, 2026
Final Rejection mailed — §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

5-6
Expected OA Rounds
25%
Grant Probability
42%
With Interview (+17.0%)
4y 4m (~1y 3m remaining)
Median Time to Grant
High
PTA Risk
Based on 508 resolved cases by this examiner. Grant probability derived from career allowance rate.

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