Prosecution Insights
Last updated: July 17, 2026
Application No. 17/890,035

SYSTEM AND METHOD FOR SEMI-FOAM FLEXIBLE SEALANT WITH DENSITY MODIFIER

Non-Final OA §103§112
Filed
Aug 17, 2022
Priority
Aug 18, 2021 — provisional 63/234,698
Examiner
CAI, WENWEN
Art Unit
1763
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Polymer Adhesive Sealant Systems Inc.
OA Round
1 (Non-Final)
60%
Grant Probability
Moderate
1-2
OA Rounds
0m
Est. Remaining
80%
With Interview

Examiner Intelligence

Grants 60% of resolved cases
60%
Career Allowance Rate
519 granted / 867 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
71 currently pending
Career history
935
Total Applications
across all art units

Statute-Specific Performance

§101
0.3%
-39.7% vs TC avg
§103
73.2%
+33.2% vs TC avg
§102
7.3%
-32.7% vs TC avg
§112
8.5%
-31.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 867 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 . Election/Restrictions Applicant’s election without traverse of Group I, claims 1-10 in the reply filed on 2/17/2026 is acknowledged. Claims 11-22 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected invention, there being no allowable generic or linking claim. Election was made without traverse in the reply filed on 2/17/2026. Specification Applicant is reminded of the proper language and format for an abstract of the disclosure. The abstract should be in narrative form and generally limited to a single paragraph on a separate sheet within the range of 50 to 150 words. It is important that the abstract not exceed 150 words in length since the space provided for the abstract on the computer tape used by the printer is limited. The form and legal phraseology often used in patent claims, such as "means" and "said," should be avoided. The abstract should describe the disclosure sufficiently to assist readers in deciding whether there is a need for consulting the full patent text for details. The language should be clear and concise and should not repeat information given in the title. It should avoid using phrases which can be implied, such as, "The disclosure concerns," "The disclosure defined by this invention," "The disclosure describes," etc. The abstract of the disclosure is objected to because it contains more than 150 words. Correction is required. See MPEP § 608.01(b). Claim Objections Claim 3 objected to because of the following informalities: a proper Markush format is “selected from the group”. Appropriate correction is required. Claim Rejections - 35 USC § 112 The following is a quotation of 35 U.S.C. 112(b): (B) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Claims 1-10 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 “introduced by a closed mixing system into the copolymer”, what is the copolymer? What does “into the copolymer” mean? Chemically incorporated into the copolymer, or physically mixed with the copolymer? For purposes of expediting prosecution, the limitation is interpreted as “the microspheres are mixed with acrylate-acrylonitrile copolymer and styrenated acrylic polymer by a closed mixing system”. Claim 3 contains the trademark/trade name Expancel. Where a trademark or trade name is used in a claim as a limitation to identify or describe a particular material or product, the claim does not comply with the requirements of 35 U.S.C. 112, second paragraph. See Ex parte Simpson, 218 USPQ 1020 (Bd. App. 1982), MPEP 2173.05(u). The claim scope is uncertain since the trademark or trade name cannot be used properly to identify any particular material or product. A trademark or trade name is used to identify a source of goods, and not the goods themselves. Thus, a trademark or trade name does not identify or describe the goods associated with the trademark or trade name. Claim 6 recites “functional filler”. What is it? What is a non-functional filler? Is Kaolin clay considered as a functional filler? For purposes of expediting prosecution, any fillers including kaolin clay, pigments, etc are considered as functional filler. Claim 6 recites three ingredients, it is unclear if the composition comprises all of them or one of them. For purposes of expediting prosecution, it is interpreted as one of them. 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. The factual inquiries set forth in Graham v. John Deere Co., 383 U.S. 1, 148 USPQ 459 (1966), that are applied 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. Claims 1-10 is/are rejected under 35 U.S.C. 103 as being unpatentable over Kocurek et al (US 2017/0190864). Claim 1, 3-6, 10: Kocurek teaches a compressible sealant composition comprising a polymeric dispersion, diluent, defoamer, surfactant, biocides, freeze/thaw additive, dispersant, microsphere Expancel 909 DET 80, a thickener, a pH modifier, a flame retardant, a filler such as talc or kaolin clay, an adhesion promoter (abstract, claims, tables 1-6). The polymer can be styrenated acrylic, acrylate acrylonitrile etc [0017, table 4, table 6]. The microsphere is mixed with other ingredients by using a peristaltic pump [0053]. The choice of polymeric chemical composition may depend upon the intended end use of the product [0018]. Therefore, it would have been obvious to one of ordinary skill in the art at the time the invention was made to choice a polymer mixture like claimed through routine experimentation to balance between cost and performance. Case law holds that "discovery of an optimum value of a result effective variable in a known process is ordinarily within the skill of the art." In re Antonie, 559 F.2d 618, 195 USPQ 6 (CCPA 1977). In re Boesch, 617 F.2d 272, 205 USPQ 215 (CCPA 1980). Claim 2: Kocurek teaches the density of the sealant can range from 0.51-0.99. Claims 7-9: It is noted that “are introduced into…” is a product-by-process limitation. Case law holds that “even though product-by-process claims are limited by and defined by the process, determination of patentability is based on the product itself. The patentability of a product does not depend on its method of production. If the product in the product-by-process claim is the same as or obvious from a product of the prior art, the claim is unpatentable even though the prior product was made by a different process.” See In re Thorpe, 777 F.2d 695, 698, 227 USPQ 964, 966 (Fed. Cir. 1985). 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

Aug 17, 2022
Application Filed
May 26, 2026
Non-Final Rejection mailed — §103, §112 (current)

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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
60%
Grant Probability
80%
With Interview (+19.8%)
3y 2m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 867 resolved cases by this examiner. Grant probability derived from career allowance rate.

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