Prosecution Insights
Last updated: April 19, 2026
Application No. 15/734,320

MODIFIED POLYOLEFIN RESIN, AND USE AND PRODUCTION METHOD OF SAME

Non-Final OA §103§112
Filed
Dec 02, 2020
Examiner
CAI, WENWEN
Art Unit
1763
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Nippon Paper Industries Co. Ltd.
OA Round
5 (Non-Final)
60%
Grant Probability
Moderate
5-6
OA Rounds
3y 2m
To Grant
80%
With Interview

Examiner Intelligence

Grants 60% of resolved cases
60%
Career Allow Rate
509 granted / 850 resolved
-5.1% vs TC avg
Strong +20% interview lift
Without
With
+19.8%
Interview Lift
resolved cases with interview
Typical timeline
3y 2m
Avg Prosecution
74 currently pending
Career history
924
Total Applications
across all art units

Statute-Specific Performance

§101
0.8%
-39.2% vs TC avg
§103
43.6%
+3.6% vs TC avg
§102
17.4%
-22.6% vs TC avg
§112
27.9%
-12.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 850 resolved cases

Office Action

§103 §112
DETAILED ACTION The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . Continued Examination Under 37 CFR 1.114 A request for continued examination under 37 CFR 1.114, including the fee set forth in 37 CFR 1.17(e), was filed in this application after final rejection. Since this application is eligible for continued examination under 37 CFR 1.114, and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114. Applicant's submission filed on 8/7/2025 has been entered. Response to Amendment Any rejections and/or objections made in the previous Office action and not repeated below are hereby withdrawn. The text of those sections of Title 35, U.S. Code not included in this action can be found in a prior Office action. Claim Rejections - 35 USC § 112 The following is a quotation of 35 U.S.C. 112(a): (a) IN GENERAL.—The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor or joint inventor of carrying out the invention. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), first paragraph: The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same and shall set forth the best mode contemplated by the inventor of carrying out his invention. Claims 1-2, 4-7 are rejected under 35 U.S.C. 112(a) or 35 U.S.C. 112 (pre-AIA ), first paragraph, as failing to comply with the written description requirement. The claim(s) contains subject matter which was not described in the specification in such a way as to reasonably convey to one skilled in the relevant art that the inventor or a joint inventor, or for pre-AIA the inventor(s), at the time the application was filed, had possession of the claimed invention. Claim 1 recites “the modified polyolefin resin does not comprise a polyoxyethylene alkylamine”. The specification discloses a dispersion composition comprising a modified polyolefin resin and a surfactant such as polyoxyethylene alkylamines. The specification does not support the modified polyolefin resin comprises a surfactant. Claims 1-2, 4-7 rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor, or for pre-AIA the applicant regards as the invention. Claim 1 recites “the modified polyolefin resin does not comprise a polyoxyethylene alkylamine”. It is unclear how a modified polyolefin resin comprises another compound. A compound itself does not comprise another compound. Therefore, it is inherent a modified polyolefin resin does not comprise a polyoxyethylene alkylamine. Claim Rejections - 35 USC § 103 Claim 1-2, 4-7 is/are rejected under 35 U.S.C. 103 as being unpatentable over Nagaoka et al (US 2011/0112229). Claim 1-2, 4-6: Nagaoka teaches a polypropylene is modified with a polarity imparting agent such as maleic anhydride and lauryl methacrylate, then reacts with a basic compound such as 2-amino-2-methyl-1-propanol, and then water is added into the mixture (0041-0056, 0083, examples). The PP contains at least 60mol% propylene [0039]. The graft weight of the unsaturated carboxylic acid in the modified polypropylene is 0.1-20 wt%, it is up to 2mmol/g of maleic anhydride or 4 mmol/g of carboxylic acid groups [0047]. The final pH of the dispersion resin composition can be maintained at 6-10 [0083]. Therefore, up to 100 mol% of carboxylic acid react with the basic substance to form amide group before water is added into the mixture [examples]. The resulting amino alcohol modified polypropylene has up to 4 mmol/g of amide group, which equals to 7mol% of amide group per mol of methylene (4mmol/(0.8/14), 0.8 is the modified polymer containing 80wt% of propylene. When considering the presence of acrylate monomer, the maximum mol% of amide group per mol of methylene is higher). Case law holds that in the case where the claimed ranges “overlap or lie inside ranges disclosed by the prior art” a prima facie case of obviousness exists. 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). Claim 7: the weight average molecular weight of modified propylene polymer can be 70,000 [0131]. Addition of the basic compound would slight change the Mw. Response to Arguments Applicant’s arguments have been considered but are moot in view of the new ground(s) of rejection. Any inquiry concerning this communication or earlier communications from the examiner should be directed to WENWEN CAI whose telephone number is (571)270-3590. The examiner can normally be reached on M-F 9am-6pm. 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 on (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 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. /WENWEN CAI/ Primary Examiner, Art Unit 1763
Read full office action

Prosecution Timeline

Dec 02, 2020
Application Filed
Dec 01, 2023
Non-Final Rejection — §103, §112
Mar 07, 2024
Response Filed
Mar 25, 2024
Final Rejection — §103, §112
Jun 28, 2024
Response after Non-Final Action
Jul 29, 2024
Request for Continued Examination
Jul 31, 2024
Response after Non-Final Action
Jan 12, 2025
Non-Final Rejection — §103, §112
Apr 16, 2025
Response Filed
May 05, 2025
Final Rejection — §103, §112
Jul 24, 2025
Response after Non-Final Action
Aug 07, 2025
Request for Continued Examination
Aug 12, 2025
Response after Non-Final Action
Sep 19, 2025
Non-Final Rejection — §103, §112 (current)

Precedent Cases

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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
60%
Grant Probability
80%
With Interview (+19.8%)
3y 2m
Median Time to Grant
High
PTA Risk
Based on 850 resolved cases by this examiner. Grant probability derived from career allow rate.

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