Prosecution Insights
Last updated: May 04, 2026
Application No. 17/928,342

DETECTION CHIP AND PREPARATION METHOD THEREOF

Final Rejection §103
Filed
Nov 29, 2022
Priority
Oct 29, 2021 — nonprovisional of PCTCN2021127599
Examiner
KRCHA, MATTHEW D
Art Unit
1796
Tech Center
1700 — Chemical & Materials Engineering
Assignee
BOE TECHNOLOGY GROUP CO., LTD.
OA Round
2 (Final)
66%
Grant Probability
Favorable
3-4
OA Rounds
0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 66% — above average
66%
Career Allowance Rate
358 granted / 544 resolved
+0.8% vs TC avg
Strong +36% interview lift
Without
With
+35.6%
Interview Lift
resolved cases with interview
Typical timeline
3y 2m
Avg Prosecution
73 currently pending
Career history
617
Total Applications
across all art units

Statute-Specific Performance

§101
1.6%
-38.4% vs TC avg
§103
47.9%
+7.9% vs TC avg
§102
21.9%
-18.1% vs TC avg
§112
22.8%
-17.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 544 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 The Amendment filed on 12/15/2025 has been entered. Claims 1-4, 6, 11, 12, 16-19, 22, 24 and 27-29 remain pending in the application. 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) 1-4 is/are rejected under 35 U.S.C. 103 as being unpatentable over United States Application Publication No. 2020/0129974, hereinafter Ren. Regarding claim 1, Ren teaches a detection chip (figure 4), comprising: a base substrate (item 12), and a detection layer (paragraph [0175], silane derivative), provided on the base substrate (paragraph [0191] and figure 3B) and including a plurality of detection holes (items 30A-30F), wherein, each of at least a portion of the plurality of detection holes has a hole wall (figure 4) provided with a hydrophilic layer (paragraph [0132]), and a contact angle of the hydrophilic layer is within 20 degrees (paragraph [0132]), wherein, an adapter primer (item 22) is disposed inside of the detection hole (figure 4); and the adapter primer is connected to a surface of the hydrophilic layer through a covalent bond (paragraph [0172]), wherein the detection chip further comprises a cover layer (item 24), wherein, the cover layer is provided on a side of the adapter primer that is away from the base substrate (figure 4), wherein, a material of the cover layer comprises a water-soluble polymer (paragraph [0178]), wherein the water-soluble polymer comprises a copolymer of N-(5-azidoacetamidopentyl) acrylamide and acrylamide (paragraph [0178]), wherein the detection chip further comprises: a cover plate (item 26), bonded by a binder to a side of the detection layer that is away from the base substrate (figure 4 and paragraph [0155]), and comprising a sample inlet and a sample outlet (paragraph [0177]), the cover plate comprises a plate surface opposite to the base substrate (figure 4), wherein a detection channel is located between the cover plate and the cover layer (figure 4), and the cover layer is only located in the detection hole (each detection hole is interpreted to be the whole of each of 30A-30F and it can be seen the item 24 is only within each of items 30A-30F). Ren fails to specifically teach the distance between the plate surface and the detection layer is 50 micrometers to 100 micrometers. Ren further teaches that the volume of each well can be selected to accommodate the throughput, resolution, analyte composition or analyte reactivity expected for downstream use of the flow cell (paragraph [0124]). It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention, to determine, through routine experimentation, the optimum distance between the plate surface and the detection layer to a range of 50-100 micrometers which would allow the throughput, resolution, analyte composition or analyte reactivity expected for downstream use of the flow cell (paragraph [0124]) (MPEP § 2144.05 (II)). Ren fails to specifically teach wherein the sample inlet and the sample outlet are arranged in an edge region of the cover plate. Ren further teaches that the lid may include inlet and outlet ports that are to fluidically engage other ports (not shown) for directing fluid(s) into the respective flow channels 30A, 30B, 30C, 30D, 30E, 30F (e.g., from a reagent cartridge or other fluid storage system) and out of the flow channel (e.g., to a waste removal system) (paragraph [0193]). It would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to have made the sample inlet and outlet ports at an edge of the cover plate because it would allow for the fluid to pass from the start to the end of the flow channel (paragraph [0193]). Regarding claim 2, Ren teaches wherein, a contact angle of a surface of the detection layer that is away from the base substrate is 80 degrees to 150 degrees (paragraph [0170]). Regarding claim 3, Ren teaches wherein, slope angles formed by side walls of at least a portion of the plurality of detection holes and a plate surface of the base substrate are 85 degrees to 90 degrees (paragraph [0054]). Regarding claim 4, Ren teaches a diameter of the detection hole is 0.75 micrometers to 1.75 micrometers (paragraph [0127]); and a separation distance between adjacent detection holes is 0.25 micrometers to 1.25 micrometers (paragraph [0121]), wherein, a depth of the detection hole is 0.75 micrometers to 1.75 micrometers (paragraph [0126). Claim(s) 1-4 is/are additionally rejected under 35 U.S.C. 103 as being unpatentable over Ren in view of United States Application Publication No. 2016/0284508, hereinafter Carson. Regarding claim 1, Ren teaches a detection chip (figure 4), comprising: a detection layer (item 12), and including a plurality of detection holes (items 30A-30F), wherein, each of at least a portion of the plurality of detection holes has a hole wall (figure 4) provided with a hydrophilic layer (paragraph [0115]), and a contact angle of the hydrophilic layer is within 20 degrees (paragraph [0115]), wherein, an adapter primer (item 22) is disposed inside of the detection hole (figure 4); and the adapter primer is connected to a surface of the hydrophilic layer through a covalent bond (paragraph [0172]), wherein the detection chip further comprises a cover layer (item 24), wherein, the cover layer is provided on a side of the adapter primer that is away from the base substrate (figure 4), wherein, a material of the cover layer comprises a water-soluble polymer (paragraph [0178]), wherein the water-soluble polymer comprises a copolymer of N-(5-azidoacetamidopentyl) acrylamide and acrylamide (paragraph [0178]), wherein the detection chip further comprises: a cover plate (item 26), bonded by a binder to a side of the detection layer that is away from the base substrate (figure 4 and paragraph [0155]), and comprising a sample inlet and a sample outlet (paragraph [0177]), the cover plate comprises a plate surface opposite to the base substrate (figure 4), wherein a detection channel is located between the cover plate and the cover layer (figure 4), and the cover layer is only located in the detection hole (each detection hole is interpreted to be the whole of each of 30A-30F and it can be seen the item 24 is only within each of items 30A-30F). Ren fails to specifically teach the distance between the plate surface and the detection layer is 50 micrometers to 100 micrometers. Ren further teaches that the volume of each well can be selected to accommodate the throughput, resolution, analyte composition or analyte reactivity expected for downstream use of the flow cell (paragraph [0124]). It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention, to determine, through routine experimentation, the optimum distance between the plate surface and the detection layer to a range of 50-100 micrometers which would allow the throughput, resolution, analyte composition or analyte reactivity expected for downstream use of the flow cell (paragraph [0124]) (MPEP § 2144.05 (II)). Ren fails to specifically teach wherein the sample inlet and the sample outlet are arranged in an edge region of the cover plate. Ren further teaches that the lid may include inlet and outlet ports that are to fluidically engage other ports (not shown) for directing fluid(s) into the respective flow channels 30A, 30B, 30C, 30D, 30E, 30F (e.g., from a reagent cartridge or other fluid storage system) and out of the flow channel (e.g., to a waste removal system) (paragraph [0193]). It would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to have made the sample inlet and outlet ports at an edge of the cover plate because it would allow for the fluid to pass from the start to the end of the flow channel (paragraph [0193]). Ren fails to teach a base substrate and the detection layer provided on the base substrate. Carson teaches a device with a turntable (base substrate) with the substrate (detection layer) provided on the turntable so that the substrate can be rotated about a central axis (Carson, paragraph [0025]). It would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to have added a turntable (base substrate) with the detection layer on the turntable because it would allow for the detection layer to be rotated about a central axis (Carson, paragraph [0025]). Regarding claim 2, Ren teaches wherein, a contact angle of a surface of the detection layer that is away from the base substrate is 80 degrees to 150 degrees (paragraph [0115]). Regarding claim 3, Ren teaches wherein, slope angles formed by side walls of at least a portion of the plurality of detection holes and a plate surface of the base substrate are 85 degrees to 90 degrees (paragraph [0054]). Regarding claim 4, Ren teaches a diameter of the detection hole is 0.75 micrometers to 1.75 micrometers (paragraph [0127]); and a separation distance between adjacent detection holes is 0.25 micrometers to 1.25 micrometers (paragraph [0121]), wherein, a depth of the detection hole is 0.75 micrometers to 1.75 micrometers (paragraph [0126). Claim(s) 6 is/are rejected under 35 U.S.C. 103 as being unpatentable over Ren with or without Carson in view of United States Application Publication No. 2005/0130173, hereinafter Leamon. Regarding claim 6, Ren with or without Carson teaches all limitations of claim 1; however, they fail to teach a bottom surface of the detection hole that is close to the base substrate comprises an arc surface that is concave toward a direction of the base substrate. Leamon teaches a reaction chambers in an array with the cavities have a planar bottom or a concave bottom (Leamon, paragraph [0201]). Examiner further finds that the prior art contained a device/method/product (i.e., a concave bottom) which differed from the claimed device by the substitution of component(s) (i.e., a flat bottom) with other component(s) (i.e., a concave bottom), and the substituted components and their functions were known in the art as above set forth. An ordinarily skilled artisan at the time of invention could have substituted one known element with another (i.e., a flat with a concave bottom), and the results of the substitution (i.e., acting as the bottom surface of the well) would have been predictable. Therefore, pursuant to MPEP §2143 (I), Examiner concludes that it would have been obvious to an ordinarily skilled artisan at the time of invention to substitute a flat bottom of reference Ren with a concave bottom of reference Leamon, since the result would have been predictable. Claim(s) 11 is/are rejected under 35 U.S.C. 103 as being unpatentable over Ren and Carson in view of United States Application Publication No. 2003/0098248, hereinafter Vogel. Regarding claim 11, Ren with or without Carson teaches the substrate is silicon dioxide, silicone nitride or silicon coated with a ceramic oxide (paragraph [0069]) Ren with or without Carson fail to teach the detection layer comprises silicon nitride; and a material of the hydrophilic layer comprises silicon oxide. Vogel teaches a device which utilizes silicon nitride as the base and silicon oxide as the coating (Vogel, paragraph [0247]). Examiner further finds that the prior art contained a device/method/product (i.e., silicon nitride as the base and silicon oxide as the coating) which differed from the claimed device by the substitution of component(s) (i.e., the substrate is silicon dioxide, silicon nitride or silicon coated with a ceramic oxide) with other component(s) (i.e., silicon nitride as the base and silicon oxide as the coating), and the substituted components and their functions were known in the art as above set forth. An ordinarily skilled artisan at the time of invention could have substituted one known element with another (i.e., a substrate made from silicon dioxide, silicon nitride or silicon coated with a ceramic oxide with silicon nitride as the base and silicon oxide as the coating), and the results of the substitution (i.e., creating a detection surface) would have been predictable. Therefore, pursuant to MPEP §2143 (I), Examiner concludes that it would have been obvious to an ordinarily skilled artisan at the time of invention to substitute the substrate is silicon dioxide, silicon nitride or silicon coated with a ceramic oxide of reference Ren with a silicon nitride as the base and silicon oxide as the coating of reference Vogel, since the result would have been predictable. Claim(s) 12 is/are rejected under 35 U.S.C. 103 as being unpatentable over Ren with or without Carson in view of United States Application Publication No. 2004/0241881, hereinafter Kuriger and Vogel. Regarding claim 12, Ren teaches wherein, the detection layer comprises a binding material layer (paragraph [0161]) and a hydrophobic material layer (paragraph [0161]); the binding material layer comprises a plurality of holes (figure 4); and the hydrophobic material layer is provided on the binding material layer, to form a plurality of detection holes at positions of the plurality of holes (figure 4 and paragraph [0161]). Ren with or without Carson and Gong fail to teach a material of the binding material layer comprises optical clear adhesive. Kuriger teaches a device which utilizes an optically clear adhesive so that the device can be read through the structure (Kuriger, paragraph [0025]). It would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to have utilized an optically clear adhesive because it would allow for the device the to be read through the structure (Kuriger, paragraph [0025]). Ren with or without Carson fails to teach a material of the hydrophobic material layer comprises silicon nitride. Vogel teaches a device which utilizes silicon nitride as the hydrophobic material (Vogel, paragraph [0247]). Examiner further finds that the prior art contained a device/method/product (i.e., silicon nitride as the hydrophobic layer) which differed from the claimed device by the substitution of component(s) (i.e., titanium dioxide) with other component(s) (i.e., silicon nitride), and the substituted components and their functions were known in the art as above set forth. An ordinarily skilled artisan at the time of invention could have substituted one known element with another (i.e., titanium dioxide with silicon nitride), and the results of the substitution (i.e., creating a hydrophobic surface) would have been predictable. Therefore, pursuant to MPEP §2143 (I), Examiner concludes that it would have been obvious to an ordinarily skilled artisan at the time of invention to substitute the titanium dioxide layer of reference Eum with a silicon nitride layer of reference Vogel, since the result would have been predictable. Claim(s) 16 is/are rejected under 35 U.S.C. 103 as being unpatentable over Ren with or without Carson in view of United States Patent No. 7,666,360, hereinafter Schellenberger. Regarding claim 16, Ren with or without Carson teaches all limitations of claim 1; however, Ren with or without Carson fails to teach the plurality of detection holes are divided into a plurality of groups of detection holes; the plurality of groups of detection holes are arranged in an array; and each of the plurality of groups of detection holes comprises a plurality of detection holes arranged in an array, a separation distance between adjacent two groups of the plurality of groups of detection holes is greater than a separation distance between two adjacent detection holes of the plurality of detection holes in each of the plurality of groups of detection holes. Schellenberger teaches a detection device which has a plurality of detection holes are divided into a plurality of groups of detection holes (Schellenberger, column 3, lines 1-11); the plurality of groups of detection holes are arranged in an array (Schellenberger, column 3, lines 1-11); and each of the plurality of groups of detection holes comprises a plurality of detection holes arranged in an array (Schellenberger, column 3, lines 1-11), a separation distance between adjacent two groups of the plurality of groups of detection holes is greater than a separation distance between two adjacent detection holes of the plurality of detection holes in each of the plurality of groups of detection holes (Schellenberger, column 3, lines 1-11) so that an operator can more easily identify a particular hole based upon which set, group, row, and column the hole is located in on the testing plate (Schellenberger, column 3, lines 1-11). It would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to have arranged the detection holes as described in the claim because it would allow for an operator to more easily identify a particular hole based upon which set, group, row, and column the hole is located in on the testing plate (Schellenberger, column 3, lines 1-11). Response to Arguments Applicant’s arguments, see pages 8-10, filed 12/15/2025, with respect to the rejection(s) of claim(s) 1 and 2 under 102(a)(1) have been fully considered and are persuasive. Therefore, the rejection has been withdrawn. However, upon further consideration, a new ground(s) of rejection is made in view of Ren with or without Carson. 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 MATTHEW D KRCHA whose telephone number is (571)270-0386. The examiner can normally be reached M-Th 7am-5pm. 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, Elizabeth Robinson can be reached at (571)272-7129. 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. /MATTHEW D KRCHA/Primary Examiner, Art Unit 1796
Read full office action

Prosecution Timeline

Nov 29, 2022
Application Filed
Sep 16, 2025
Non-Final Rejection — §103
Dec 15, 2025
Response Filed
Jan 05, 2026
Final Rejection — §103
Apr 06, 2026
Request for Continued Examination
Apr 07, 2026
Response after Non-Final Action

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Prosecution Projections

3-4
Expected OA Rounds
66%
Grant Probability
99%
With Interview (+35.6%)
3y 2m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 544 resolved cases by this examiner. Grant probability derived from career allowance rate.

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