Prosecution Insights
Last updated: May 29, 2026
Application No. 18/269,383

DENTAL COMPOSITION

Non-Final OA §102§103
Filed
Jun 23, 2023
Priority
Dec 25, 2020 — JP 2020-218033 +1 more
Examiner
ROSWELL, JESSICA MARIE
Art Unit
1767
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Kuraray Noritake Dental Inc.
OA Round
1 (Non-Final)
52%
Grant Probability
Moderate
1-2
OA Rounds
6m
Est. Remaining
89%
With Interview

Examiner Intelligence

Grants 52% of resolved cases
52%
Career Allowance Rate
404 granted / 775 resolved
-12.9% vs TC avg
Strong +36% interview lift
Without
With
+36.5%
Interview Lift
resolved cases with interview
Typical timeline
3y 6m
Avg Prosecution
35 currently pending
Career history
830
Total Applications
across all art units

Statute-Specific Performance

§101
0.3%
-39.7% vs TC avg
§103
74.7%
+34.7% vs TC avg
§102
5.5%
-34.5% vs TC avg
§112
3.1%
-36.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 775 resolved cases

Office Action

§102 §103
DETAILED ACTION 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 . Claim Rejections - 35 USC § 102 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. 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. Claim(s) 1-2, 4-5, and 8-11 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Shinya et al. (US Serial No. 2010/0033661). Regarding claims 1-2, 4-5, and 8; Shinya et al. teaches a composition comprising a polybutadiene acrylate (TE-2000, urethane polybutadiene acrylate; MW about 2,000, Tg -9°C, see instant spec [0139]), hydroxyethyl acrylate, and Irgacure®184 (photoinitiator) [0062]. It is noted that Shinya et al. teaches TE-2000 and hydroxyethyl acrylate to be preferred components for compound (A) and (B) respectfully, thus the Examiner takes the position that TE-2000 and hydroxyethyl acrylate have a solubility of less than 20 g/L in acetone at 25°C. The Examiner makes note that “dental” composition is merely an intended use limitation. If the body of a claim fully and intrinsically sets forth all of the limitations of the claimed invention, and the preamble merely states, for example, the purpose or intended use of the invention, rather than any distinct definition of any of the claimed invention’s limitations, then the preamble is not considered a limitation and is of no significance to claim construction. Pitney Bowes, Inc. v. Hewlett-Packard Co., 182 F.3d 1298, 1305, 51 USPQ2d 1161, 1165 (Fed. Cir. 1999). See also Rowe v. Dror, 112 F.3d 473, 478, 42 USPQ2d 1550, 1553 (Fed. Cir. 1997); see MPEP §2111.02. Regarding claims 9-11; “a dental composite resin”, “a self-adhesive dental resin”, and “a dental cement” are merely intended use limitations. The language of the instant claims merely require the composition of claimed 1, thus the limitations to being used in dental field are directed to intended use. If the body of a claim fully and intrinsically sets forth all of the limitations of the claimed invention, and the preamble merely states, for example, the purpose or intended use of the invention, rather than any distinct definition of any of the claimed invention’s limitations, then the preamble is not considered a limitation and is of no significance to claim construction. Pitney Bowes, Inc. v. Hewlett-Packard Co., 182 F.3d 1298, 1305, 51 USPQ2d 1161, 1165 (Fed. Cir. 1999). See also Rowe v. Dror, 112 F.3d 473, 478, 42 USPQ2d 1550, 1553 (Fed. Cir. 1997); see MPEP §2111.02. Claim(s) 1 and 9-11 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Ukida et al. (US Patent No. 4331795). Regarding claim 1; Ukida et al. teaches, in a preferred embodiment, a polybutadiene acrylate (TE-2000, urethane polybutadiene acrylate; MW about 2,600, Tg -9°C, see instant spec [0139]), 2-hydroxyethyl acrylate, and cumene hydroperoxide (photoinitiator) [Ex1, Table1]. It is noted that Ukida et al. teaches TE-2000 and hydroxyethyl acrylate to be preferred components for compound (A) and (B) respectfully, thus the Examiner takes the position that TE-2000 and hydroxyethyl acrylate have a solubility of less than 20 g/L in acetone at 25°C. The Examiner makes note that “dental” composition is merely an intended use limitation. If the body of a claim fully and intrinsically sets forth all of the limitations of the claimed invention, and the preamble merely states, for example, the purpose or intended use of the invention, rather than any distinct definition of any of the claimed invention’s limitations, then the preamble is not considered a limitation and is of no significance to claim construction. Pitney Bowes, Inc. v. Hewlett-Packard Co., 182 F.3d 1298, 1305, 51 USPQ2d 1161, 1165 (Fed. Cir. 1999). See also Rowe v. Dror, 112 F.3d 473, 478, 42 USPQ2d 1550, 1553 (Fed. Cir. 1997); see MPEP §2111.02. Regarding claims 9-11; “a dental composite resin”, “a self-adhesive dental resin”, and “a dental cement” are merely intended use limitations. The language of the instant claims merely require the composition of claimed 1, thus the limitations to being used in dental field are directed to intended use. If the body of a claim fully and intrinsically sets forth all of the limitations of the claimed invention, and the preamble merely states, for example, the purpose or intended use of the invention, rather than any distinct definition of any of the claimed invention’s limitations, then the preamble is not considered a limitation and is of no significance to claim construction. Pitney Bowes, Inc. v. Hewlett-Packard Co., 182 F.3d 1298, 1305, 51 USPQ2d 1161, 1165 (Fed. Cir. 1999). See also Rowe v. Dror, 112 F.3d 473, 478, 42 USPQ2d 1550, 1553 (Fed. Cir. 1997); see MPEP §2111.02. Claim Rejections - 35 USC § 103 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. 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(s) 3, 6, and 7 is/are rejected under 35 U.S.C. 103 as being unpatentable over Ukida et al. (US Patent No. 4331795), as applied to claim 1 above. Ukida et al. teaches the basic claimed composition, as set forth above, with respect to claim 1. Regarding claim 3; Ukida et al. teaches, in the preferred embodiment, a 60:40 ratio of the butadiene oligomer to the acrylic monomer, however fails to teach a content of compound (A) (oligomer) is 0.1 to 50 parts with respect to the total 100 parts by mass of compound (A) and (B) (oligomer and acrylate monomer). Ukida et al. contemplates a larger range, wherein the ratio of the oligomer to the acrylic monomer is in a range of 90 to 40:10 to 60 [col2, line47-50]. In the instance the ratio of oligomer to monomer is 40:60; the polybutadiene based oligomer is employed in an amount of 40 parts with respect to the total 100 parts by mass of compounds (A) and (B). In the case where the claimed ranges “overlap or lie inside ranges disclosed by the prior art” a prima facie case of obviousness exists. See 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), see MPEP §2144.05. Regarding claims 6 and 7; Ukida et al. teaches the composition may comprise acrylic acid as the acrylate monomer [col1, line58-62], and the composition may further comprise a filler [col3, line17-20]. A reference may be relied upon for all that it would have reasonably suggested to one having ordinary skill the art, including the non-preferred embodiments. Merck & Co. v. Biocraft Laboratories, 874 F.2d 804, 10 USPQ2d 1843 (Fed. Cir.); See MPEP §2123. Ukida et al. does not specifically disclose an embodiment containing acrylic acid and/or a filler. However, at the time of invention a person of ordinary skill in the art would have found it obvious to prepare a composition further containing the acrylic acid or filler, based on the invention of Ukida et al., and would have been motivated to do so since Ukida et al. suggests that the composition can contain acrylic acid and/or fillers. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Yoshida et al. (US Serial No. 2013/028664 and 2015/0050509) teaches a photocurable resin composition used as an adhesive and/or a dental material, comprising the reaction product of G-3000 (polybutadiene glycol) to be reacted with KARENZ® MOI [0123, 0237 of ‘604; 0137, 0258, 0307 of ‘509]. The compound as taught by Yoshida et al. is used as an intermediate compound and thus does not read on the claimed invention. Correspondence Any inquiry concerning this communication or earlier communications from the examiner should be directed to JESSICA ROSWELL whose telephone number is (571)270-5453. The examiner can normally be reached M-F 8:00 am to 5:00 pm. 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, Mark Eashoo can be reached at 571-272-1197. 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. /JESSICA M ROSWELL/ Primary Examiner, Art Unit 1767
Read full office action

Prosecution Timeline

Jun 23, 2023
Application Filed
Apr 14, 2026
Non-Final Rejection mailed — §102, §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12630747
ULTRAVIOLET CURABLE SILICONE ADHESIVE COMPOSITION AND CURED PRODUCT OF SAME
4y 11m to grant Granted May 19, 2026
Patent 12630745
RADIATION CURABLE PRIMER ADHESIVE
4y 7m to grant Granted May 19, 2026
Patent 12630470
Polyamideimide Film and Window Cover Film Including the Same
4y 6m to grant Granted May 19, 2026
Patent 12630727
PHOTOCURABLE INKJET PRINTING INK COMPOSITION
3y 8m to grant Granted May 19, 2026
Patent 12624167
CURABLE COMPOSITIONS CONTAINING THIOL COMPOUNDS
6y 0m to grant Granted May 12, 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
52%
Grant Probability
89%
With Interview (+36.5%)
3y 6m (~6m remaining)
Median Time to Grant
Low
PTA Risk
Based on 775 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