Prosecution Insights
Last updated: August 17, 2026
Application No. 18/561,675

PHOPHORUS CONTAINING MONOMER OR OLIGOMER, POLYESTER RESIN COMPRISING SAME, AND THERMOPLASTIC RESIN COMPOSITION

Non-Final OA §102§103
Filed
Nov 16, 2023
Priority
Dec 17, 2021 — RE 10-2021-0182135 +2 more
Examiner
LEONARD, MICHAEL L
Art Unit
Tech Center
Assignee
LG Chem Ltd.
OA Round
1 (Non-Final)
64%
Grant Probability
Moderate
1-2
OA Rounds
4m
Est. Remaining
72%
With Interview

Examiner Intelligence

Grants 64% of resolved cases
64%
Career Allowance Rate
856 granted / 1346 resolved
+3.6% vs TC avg
Moderate +8% lift
Without
With
+8.4%
Interview Lift
resolved cases with interview
Typical timeline
3y 1m
Avg Prosecution
48 currently pending
Career history
1394
Total Applications
across all art units

Statute-Specific Performance

§101
1.3%
-38.7% vs TC avg
§103
52.9%
+12.9% vs TC avg
§102
19.1%
-20.9% vs TC avg
§112
18.2%
-21.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1346 resolved cases

Office Action

§102 §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 . Election/Restrictions Claims 6-17 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected groups, there being no allowable generic or linking claim. Election was made without traverse in the reply filed on 07/16/2026. Claim Rejections - 35 USC § 102 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 “Flame-retardant thermoplastic polyurethane based on reactive phosphonate polyol” to Cai et al. (type in title using google chrome to access full article, unable to print and save at this time). As to claims 1-5, Cai discloses a polyol intermediate comprising the reaction product of 2-carboxyethylphenylphosphinic acid (CEPPA) and ethylene glycol represented by the following: PNG media_image1.png 324 472 media_image1.png Greyscale The molar ratio of CEPPA to ethylene glycol is 1:2, 1:3, 1:4, and 1.5 (Table 1). Claims 1-4 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by JP-09170178 to Horie et al. (Cited on IDS). As to claims 1-4, Horie discloses a polyol intermediate comprising the reaction product of ethylene glycol and 2-carboxyethyl(phenyl)phosphinic acid or 2-carboxyethyl(methyl)phosphinic acid (Production examples 1 and 3)represented by the following: PNG media_image2.png 96 398 media_image2.png Greyscale Wherein R2 is a linear or branched alkyl group or phenyl group, R6 and R7 are a hydrogen atom or R5OH and m is a number of 1 to 300 (0007). The molar ratio of DEG to CEPPA is 1.5:10 (0013) and the molecular weight of the intermediate ranges from 1,000 to 50,000 (0015). 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. Claim 5 is rejected under 35 U.S.C. 103 as being unpatentable over JP-09170178 to Horie et al. (Cited on IDS). As to claim 5, Horie discloses a polyol intermediate comprising the reaction product of ethylene glycol and 2-carboxyethyl(phenyl)phosphinic acid or 2-carboxyethyl(methyl)phosphinic acid (Production examples 1 and 3 )represented by the following: PNG media_image2.png 96 398 media_image2.png Greyscale Wherein R2 is a linear or branched alkyl group or phenyl group, R6 and R7 are a hydrogen atom or R5OH and m is a number of 1 to 300 (0007). The molar ratio of DEG to CEPPA is 1.5:10 (0013) and the molecular weight of the intermediate ranges from 1,000 to 50,000 (0015). The molecular weight overlaps the claimed range. Horie discloses molecular weights below 1,000 results in insufficient washability and durability and higher than 50,000 results in a decrease in emulsification and dispersibility and poor adhesion to synthetic fibers (0015). Accordingly, at the time of filing it would have been obvious to a person of ordinary skill in the art to maintain the molecular weight within the claimed range to prepare an intermediate with the desired properties based on the teachings of Horie. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to MICHAEL L LEONARD whose telephone number is (571)270-7450. The examiner can normally be reached M - F 7:00-4:00. 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, Joseph Del Sole can be reached at 571-272-1130. 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. /MICHAEL L LEONARD/ Primary Examiner, Art Unit 1763
Read full office action

Prosecution Timeline

Nov 16, 2023
Application Filed
Jul 30, 2026
Non-Final Rejection mailed — §102, §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12703768
DEGRADABLE BIO-BASED POLYMERS
3y 9m to grant Granted Aug 11, 2026
Patent 12703769
RHEOLOGY CONTROL AGENT
3y 2m to grant Granted Aug 11, 2026
Patent 12703770
HEAT-SHRINKABLE POLYESTER FILM, HEAT-SHRINKABLE LABEL, AND PACKAGE PRODUCT
3y 5m to grant Granted Aug 11, 2026
Patent 12686738
POLYURETHANE RESIN, NON-NATURAL LEATHER, AND INK
3y 5m to grant Granted Jul 21, 2026
Patent 12679909
Method for Multicolor Lithography Using Mechanical Force
3y 3m 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
64%
Grant Probability
72%
With Interview (+8.4%)
3y 1m (~4m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1346 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