Prosecution Insights
Last updated: August 06, 2026
Application No. 18/278,627

COMPOSITE LITHIUM NICKEL MANGANESE OXIDE POSITIVE ELECTRODE MATERIAL AND PREPARATION METHOD THEREOF, AND LITHIUM ION BATTERY POSITIVE ELECTRODE PLATE

Non-Final OA §102
Filed
Aug 24, 2023
Priority
Nov 09, 2021 — CN 202111319825.6 +1 more
Examiner
DOUYETTE, KENNETH J
Art Unit
1725
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Envision Ruitai Dynamics Technology (Shanghai) Co. Ltd.
OA Round
1 (Non-Final)
82%
Grant Probability
Favorable
1-2
OA Rounds
0m
Est. Remaining
96%
With Interview

Examiner Intelligence

Grants 82% — above average
82%
Career Allowance Rate
1248 granted / 1528 resolved
+16.7% vs TC avg
Moderate +14% lift
Without
With
+14.5%
Interview Lift
resolved cases with interview
Typical timeline
2y 9m
Avg Prosecution
44 currently pending
Career history
1569
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
58.3%
+18.3% vs TC avg
§102
17.7%
-22.3% vs TC avg
§112
18.1%
-21.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1528 resolved cases

Office Action

§102
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 Applicant’s election of Group I in the reply filed on 5/12/2026 is acknowledged. Because applicant did not distinctly and specifically point out the supposed errors in the restriction requirement, the election has been treated as an election without traverse (MPEP § 818.01(a)). 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 1-5 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Onuma et al. (JP 2016/051566, see Machine Translation). Regarding claim 1, Onuma et al. discloses in Figs 1-2, a composite lithium nickel oxide ([0034], [0053]) positive electrode material ([0034], [0053]), comprising lithium nickel manganese oxide (LiNi0.5Mn1.5O4 [0034], [0053]) coated with a lithium ion conductor (Li1.3Al0.3Ti1.7(PO3)4 [0034], [0053]), wherein a mass ratio of the lithium ion conductor ([0034], [0053]) to the lithium nickel manganese oxide ([0034], [0053]) is 1:99 ([0034], [0053]), wherein the lithium ion conductor ([0034], [0053]) comprises a metal salt of lithium ([0034], [0053]), and a lithium ion diffusion rate of the lithium ion conductor is greater than 10-5 mS/cm (Li1.3Al0.3Ti1.7(PO3)4 ([0034], [0053]). Regarding claims 2 and 3, Onuma et al. discloses all of the claim limitations as set forth above and also discloses the lithium ion conductor comprises Li1.3Al0.3Ti1.7(PO3)4 ([0034]). Regarding claim 4, Onuma et al. discloses all of the claim limitations as set forth above and also discloses a chemical formula of the lithium nickel manganese oxide is LiNi0.5Mn1.5O4 ([0034]). Regarding claim 5, Onuma et al. discloses all of the claim limitations as set forth above and also discloses the composite lithium nickel manganese oxide positive electrode material ([0034], [0053]) comprises a secondary spherical shape and/or a single crystal shape ([0043], [0034], [0053]). Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure: Hagh et al. (US 8,906,553) discloses in Figs 1-6, a cathode active material including Li/Mn/Ni/O4 coated with Li/Al/Ti/(PO4)3 (C1/L67-68 – C2/L1-11). Chen et al. (CN 102683709, see Machine Translation) discloses a positive active material comprising LiNi0.5Mn1.5O4 (Abstract) that is coated with a lithium ion conductor material (Abstract). Any inquiry concerning this communication or earlier communications from the examiner should be directed to KENNETH J DOUYETTE whose telephone number is (571)270-1212. The examiner can normally be reached Monday - Friday 8A - 4P EST. 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, Basia Ridley can be reached at 571-272-1453. 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. /KENNETH J DOUYETTE/Primary Examiner, Art Unit 1725
Read full office action

Prosecution Timeline

Aug 24, 2023
Application Filed
Jul 22, 2026
Non-Final Rejection mailed — §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12700649
SINGLE CONDUCTOR LAYER CELL-TO-CELL INTERCONNECT FOR ELECTRIC VEHICLE POWER SUPPLY OR OTHER POWER SUPPLY
4y 0m to grant Granted Aug 04, 2026
Patent 12700608
METHOD AND APPARATUS FOR CONTROLLING SEPARATOR TENSION OF LAMINATED PLATES OF SECONDARY BATTERY
3y 8m to grant Granted Aug 04, 2026
Patent 12689081
HOUSING PART, IN PARTICULAR MICROBATTERY AND METHOD FOR MANUFACTURING A HOUSING PART
3y 10m to grant Granted Jul 21, 2026
Patent 12689053
ELECTRODE CUTTING DEVICE AND STACKED CELL MANUFACTURING DEVICE
3y 6m to grant Granted Jul 21, 2026
Patent 12683222
BATTERY MODULE
3y 4m to grant Granted Jul 14, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

Strategy Recommendation AI-generated — please review before filing

Get a prosecution strategy drawn from examiner precedents, rejection analysis, and claim mapping.
Typically takes 5-10 seconds — AI-generated, attorney review required before filing

Prosecution Projections

1-2
Expected OA Rounds
82%
Grant Probability
96%
With Interview (+14.5%)
2y 9m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1528 resolved cases by this examiner. Grant probability derived from career allowance rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month