Prosecution Insights
Last updated: August 17, 2026
Application No. 18/285,854

PHOSPHOROUS OLIGOMER, POLYESTER RESIN AND THERMOPLASTIC RESIN COMPOSITION COMPRISING SAME

Non-Final OA §103
Filed
Oct 05, 2023
Priority
Oct 07, 2021 — RE 10-2021-0133500 +3 more
Examiner
FANG, SHANE
Art Unit
1766
Tech Center
1700 — Chemical & Materials Engineering
Assignee
LG Chem Ltd.
OA Round
1 (Non-Final)
76%
Grant Probability
Favorable
1-2
OA Rounds
0m
Est. Remaining
95%
With Interview

Examiner Intelligence

Grants 76% — above average
76%
Career Allowance Rate
1152 granted / 1509 resolved
+11.3% vs TC avg
Strong +19% interview lift
Without
With
+18.8%
Interview Lift
resolved cases with interview
Typical timeline
2y 5m
Avg Prosecution
70 currently pending
Career history
1569
Total Applications
across all art units

Statute-Specific Performance

§101
0.8%
-39.2% vs TC avg
§103
54.6%
+14.6% vs TC avg
§102
19.8%
-20.2% vs TC avg
§112
12.8%
-27.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1509 resolved cases

Office Action

§103
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 . DETAILED ACTION All the references cited in the International Search Report have been considered. None is anticipatory to the elected species. The most pertinent of these references have been applied below. Claim Objections Claim(s) 4 is/are objected to because of the following informalities: the structures are almost illegible, and claim 1 has been recited twice. Appropriate correction is required. Election/Restrictions The applicant has elected Species IA (claims 1-5) and: PNG media_image1.png 200 400 media_image1.png Greyscale without traverse. This restriction is made FINAL. See previous action for the reasons of applying restriction. 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 of this title, 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. Claim(s) 1-5 is (are) rejected under 35 U.S.C. 103 as being unpatentable over Cai et al. listed on IDS and ISR. As to claims 1-5, Cai discloses PCEPEP-4 terminated with CH2CH2OH that meets the claimed structures: PNG media_image2.png 158 568 media_image2.png Greyscale PNG media_image3.png 75 603 media_image3.png Greyscale PNG media_image4.png 331 612 media_image4.png Greyscale . As to repeating unit of claim 1 and Mw of claim 5, PCEPEP-4 would inherently having a repeating unit ≥2, as evidenced by the acid and hydroxyl value, overlapping with the claimed range and would be expected to yield a Mw overlapping with the claimed range. It has been found that where claimed ranges overlap ranges disclosed by the prior art, a prima facie case of obviousness exists - see MPEP 2144.05 I. In re Wertheim, 541 F.2d 257, 191 USPQ 90 (CCPA 1976); In re Woodruff, 919 F.2d 1575, 16 USPQ2d 1934 (Fed. Cir. 1990). Therefore, it would have been obvious to one skilled in the art to have created/selected the claimed compositional elements from the composition disclosed in the Cai since it discloses all applicants' components, values and methods of making. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to SHANE FANG whose telephone number is (571)270-7378. The examiner can normally be reached on Mon-Thurs. 8am-6pm. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Randy Gulakowski can be reached on 571.572.1302. Information regarding the status of an application may be obtained from the Patent Application Information Retrieval (PAIR) system. Status information for published applications may be obtained from either Private PAIR or Public PAIR. Status information for unpublished applications is available through Private PAIR only. For more information about the PAIR system, see http://pair-direct.uspto.gov. Should you have questions on access to the Private PAIR system, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative or access to the automated information system, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /SHANE FANG/Primary Examiner, Art Unit 1766
Read full office action

Prosecution Timeline

Oct 05, 2023
Application Filed
Jul 30, 2026
Non-Final Rejection mailed — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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3y 7m to grant Granted Jul 28, 2026
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3y 6m to grant Granted Jul 21, 2026
Patent 12668664
SULFUR COPOLYMER AND METHOD FOR PREPARING THE SAME
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Patent 12668662
METHOD FOR PRODUCING MALEIMIDE POLYETHYLENE GLYCOL LIPID
3y 3m to grant Granted Jun 30, 2026
Patent 12668917
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3y 3m to grant Granted Jun 30, 2026
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
76%
Grant Probability
95%
With Interview (+18.8%)
2y 5m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1509 resolved cases by this examiner. Grant probability derived from career allowance rate.

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