Prosecution Insights
Last updated: July 17, 2026
Application No. 17/713,997

SOLUTIONS FOR SOLVENT SWELLING AND SOLVENT BONDING

Final Rejection §102§103§112
Filed
Apr 05, 2022
Priority
Apr 12, 2021 — provisional 63/173,809
Examiner
NGUYEN, HAIDUNG D
Art Unit
1761
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Illinois Tool Works Inc.
OA Round
4 (Final)
65%
Grant Probability
Favorable
5-6
OA Rounds
0m
Est. Remaining
93%
With Interview

Examiner Intelligence

Grants 65% — above average
65%
Career Allowance Rate
405 granted / 623 resolved
At TC average
Strong +28% interview lift
Without
With
+27.8%
Interview Lift
resolved cases with interview
Typical timeline
3y 0m
Avg Prosecution
42 currently pending
Career history
667
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
76.3%
+36.3% vs TC avg
§102
13.0%
-27.0% vs TC avg
§112
5.0%
-35.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 623 resolved cases

Office Action

§102 §103 §112
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 . Response to Amendment This action is responsive to applicant’s amendment filed 4/1/2026. Claims 1-4, 22-31 are pending. The previous rejection of claims 1, 4, 22, 23, 26-28, and 31 under 35 U.S.C. 102(a)(1) as being anticipated by Chen et al. (CN 1118547) is withdrawn in view of applicant’s amendment. The previous rejection of claims 1-3, 22-30 under 35 U.S.C. 102(a)(1) as being anticipated by Hasanov et al. (ISSN 0018151X, High Temperature, 2012, Vol. 50, No. 1, pp. 44–51) is withdrawn in view of applicant’s amendment. The previous rejection of claims 1, 4, 22, 23, 26-28, and 31 under 35 U.S.C. 103 as obvious over Chen et al. (CN 1118547) in view of Shiga et al. (US2017/0283539) is withdrawn in view of applicant’s amendment. The previous rejection of claims 1-3, 22-30 under 35 U.S.C. 103 as obvious over Hasanov et al. (ISSN 0018151X, High Temperature, 2012, Vol. 50, No. 1, pp. 44–51) in view of Shiga et al. (US2017/0283539) is withdrawn in view of applicant’s amendment. The text of those sections of Title 35, U.S. Code not included in this action can be found in a prior Office action. Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Claim Rejections - 35 USC § 112 The following is a quotation of 35 U.S.C. 112(d): (d) REFERENCE IN DEPENDENT FORMS.—Subject to subsection (e), a claim in dependent form shall contain a reference to a claim previously set forth and then specify a further limitation of the subject matter claimed. A claim in dependent form shall be construed to incorporate by reference all the limitations of the claim to which it refers. The following is a quotation of pre-AIA 35 U.S.C. 112, fourth paragraph: Subject to the following paragraph [i.e., the fifth paragraph of pre-AIA 35 U.S.C. 112], a claim in dependent form shall contain a reference to a claim previously set forth and then specify a further limitation of the subject matter claimed. A claim in dependent form shall be construed to incorporate by reference all the limitations of the claim to which it refers. Claims 2, 24 and 29 are rejected under 35 U.S.C. 112(d) or pre-AIA 35 U.S.C. 112, 4th paragraph, as being of improper dependent form for failing to further limit the subject matter of the claim upon which it depends, or for failing to include all the limitations of the claim upon which it depends. Claim 2 recites “the swelling solvent…comprising between 70 % to 90 % by volume n-Octane”. Claim 24 recites “the swelling solvent…comprising between 70 % to 90 % by volume n-Octane”. Claim 29 recites “the swelling solvent…comprising between 70 % to 90 % by volume n-Octane”. These recitations fail to further limit because claim 1, which these claims are depended from, recites the limit of n-octane is between 5 % to 85 % by volume. Applicant may cancel the claim(s), amend the claim(s) to place the claim(s) in proper dependent form, rewrite the claim(s) in independent form, or present a sufficient showing that the dependent claim(s) complies with the statutory requirements. Claim Rejections - 35 USC § 102 Claims 1-4, 22-31 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Wang et al. (Journal of Chemical and Engineering Data, Vol. 52, 1866-1871). Wang discloses a fuel formula comprising 5-85 % n-heptane, 5-85 % n-octane, 10-90 % n-nonane (Table 2). The recitation of “swelling solvent solution for a polymeric part” in the preamble and “the amount of the n-Octane and the heptane isomer of the swelling solvent solution is selected based on the desired swelling time for the polymeric part” are treated as a statement of intended use. A recitation of the intended use of the claimed invention must result in a structural difference between the claimed invention and the prior art in order to patentably distinguish the claimed invention from the prior art. If the prior art structure is capable of performing the intended use, then it meets the claim. The law also held that “arguments that the alleged anticipatory prior art is ‘nonanalogous art’ or ‘teaches away from the invention’ or is not recognized as solving the problem solved by the claimed invention, [are] not ‘germane’ to a rejection under section 102” and a reference may be directed to an entirely different problem than the one addressed by the inventor, or may be from an entirely different field of endeavor than that of the claimed invention, yet the reference is still anticipatory if it explicitly or inherently discloses every limitation recited in the claims. See MPEP 2131.05. Wang discloses every limitation recited in the claims and thus is anticipatory. Claim Rejections - 35 USC § 103 Claims 1-4, 22-31 are rejected under 35 U.S.C. 103 as obvious over Wang et al. (Journal of Chemical and Engineering Data, Vol. 52, 1866-1871) in view of Shiga et al. (US2017/0283539). Wang discloses a fuel formula comprising 5-85 % n-heptane, 5-85 % n-octane, 10-90 % n-nonane (Table 2). The recitation of “swelling solvent solution for a polymeric part” in the preamble and “the amount of the n-Octane and the heptane isomer of the swelling solvent solution is selected based on the desired swelling time for the polymeric part” are treated as a statement of intended use. A recitation of the intended use of the claimed invention must result in a structural difference between the claimed invention and the prior art in order to patentably distinguish the claimed invention from the prior art. If the prior art structure is capable of performing the intended use, then it meets the claim. As disclosed by Shiga, hydrocarbon solvents such as n-heptane, n-octane, and n-nonane are known in the art to use as swelling solvents for polymer components and thus the formula disclosed by Chen is capable of performing the intended use. The law held that "It is prima facie obvious to combine two compositions each of which is taught by the prior art to be useful for the same purpose, in order to form a third composition to be used for the very same purpose.... [T]he idea of combining them flows logically from there having been individually taught in the prior art." In re Kerkhoven, 626 F.2d 846, 850, 205 USPQ 1069, 1072 (CCPA 1980) (citations omitted) (Claims to a process of preparing a spray-dried detergent by mixing together two conventional spray-dried detergents were held to be prima facie obvious.). See also In re Crockett, 279 F.2d 274, 126 USPQ 186 (CCPA 1960) (Claims directed to a method and material for treating cast iron using a mixture comprising calcium carbide and magnesium oxide were held unpatentable over prior art disclosures that the aforementioned components individually promote the formation of a nodular structure in cast iron.); Ex parte Quadranti, 25 USPQ2d 1071 (Bd. Pat. App. & Inter. 1992) (mixture of two known herbicides held prima facie obvious); and In re Couvaras, 70 F.4th 1374, 1378-79, 2023 USPQ2d 697 (Fed. Cir. 2023) (That the two claimed types of active agents, GABA-a agonists and ARBs, were known to be useful for the same purpose—alleviating hypertension—alone can serve as a motivation to combine). Since each of the solvents, n-heptane, n-octane, and n-nonane, are known in the art to use as swelling solvents for polymer components, the combination of them would also be to be useful for the same purpose. Response to Arguments Applicant’s arguments filed 4/1/2026 have been considered but are moot because the new ground of rejection does not rely on any reference applied in the prior rejection of record for any teaching or matter specifically challenged in the argument. Conclusion Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to HAIDUNG D NGUYEN whose telephone number is (571)270-5455. The examiner can normally be reached M-Th: 10a-3p. 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, Angela Brown-Pettigrew can be reached on 571-272-2817. 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. /HAIDUNG D NGUYEN/Primary Examiner, Art Unit 1761 6/10/2026
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Prosecution Timeline

Show 1 earlier event
Sep 19, 2024
Non-Final Rejection mailed — §102, §103, §112
Feb 19, 2025
Response Filed
Mar 05, 2025
Final Rejection mailed — §102, §103, §112
Sep 05, 2025
Request for Continued Examination
Sep 10, 2025
Response after Non-Final Action
Oct 01, 2025
Non-Final Rejection mailed — §102, §103, §112
Apr 01, 2026
Response Filed
Jun 12, 2026
Final Rejection mailed — §102, §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

5-6
Expected OA Rounds
65%
Grant Probability
93%
With Interview (+27.8%)
3y 0m (~0m remaining)
Median Time to Grant
High
PTA Risk
Based on 623 resolved cases by this examiner. Grant probability derived from career allowance rate.

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