Prosecution Insights
Last updated: October 26, 2026
Application No. 18/922,838

Method For Determining An Internal Structure Of A Dental Prosthesis Base, Method For The Production Of A Dental Prosthesis Base, Dental Prosthesis Base, Data-Processing Device, Computer Program And Computer-Readable Medium

Non-Final OA §102§112
Filed
Oct 22, 2024
Priority
Oct 27, 2023 — EU 23206439.4
Examiner
NELSON, MATTHEW M
Art Unit
3772
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Ivoclar Vivadent AG
OA Round
2 (Non-Final)
58%
Grant Probability
Moderate
2-3
OA Rounds
1y 3m
Est. Remaining
82%
With Interview

Examiner Intelligence

Grants 58% of resolved cases
58%
Career Allowance Rate
510 granted / 881 resolved
-12.1% vs TC avg
Strong +24% interview lift
Without
With
+24.0%
Interview Lift
resolved cases with interview
Typical timeline
3y 3m
Avg Prosecution
47 currently pending
Career history
937
Total Applications
across all art units

Statute-Specific Performance

§101
3.7%
-36.3% vs TC avg
§103
45.4%
+5.4% vs TC avg
§102
21.5%
-18.5% vs TC avg
§112
23.7%
-16.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 881 resolved cases

Office Action

§102 §112
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 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 12 is rejected under 35 U.S.C. 102(a)(1) as being anticipated by Toyoda (US 2022/0142757). Toyoda shows a dental prosthesis base (Fig. 1A with tooth 31 attached) comprising an outer shell (exterior of base) and an internal structure (interior thereof), wherein the internal structure is determined by the method as claimed in claim 1 (this is considered product-by-process where only the resulting structure is at issue, where the method of claim 1 does not impart any resulting structure since the sub-volumes determined by claim 1 impart no structural distinction between the volumes). Allowable Subject Matter Claims 1, 3-4, 8, 10-11, 13-15 would be allowable if rewritten or amended to overcome the rejections under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), 2nd paragraph, and 101 set forth in this Office action. The following is a statement of reasons for the indication of allowable subject matter: The closest prior art of Toyoda similarly shows a denture base with multiple volumes having different properties, however they are not determined in the same manner as the present method, nor do they structurally match the result of the present method when different materials are incorporated. The present invention is specific to how the volumes are determined in relation to a reference point and gum ridge line. Response to Arguments The changes to the claims have overcome the 112 and 101 rejections. Claim 12 was incorrectly included in the indication of allowability of the previous action and therefore this response remains Non-Final due to this error. Claim 12 remains rejected under Toyoda. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to MATTHEW NELSON whose telephone number is (571)270-5898. The examiner can normally be reached on Monday-Friday 7:30am-5:00pm EDT. If attempts to reach the examiner by telephone are unsuccessful, please contact the examiner’s supervisor, Eric Rosen, at (571) 270-7855. 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. /MATTHEW M NELSON/Primary Examiner, Art Unit 3772
Read full office action

Prosecution Timeline

Oct 22, 2024
Application Filed
Mar 26, 2026
Non-Final Rejection mailed — §102, §112
Jun 26, 2026
Response Filed
Oct 02, 2026
Non-Final Rejection mailed — §102, §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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1y 11m to grant Granted Oct 13, 2026
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4y 11m to grant Granted Sep 22, 2026
Patent 12734022
DENTURE BASE AND MANUFACTURING METHOD FOR THE SAME
3y 6m to grant Granted Sep 15, 2026
Patent 12733815
ORAL DIAGNOSTIC DEVICE USING LIGHT
2y 1m to grant Granted Sep 15, 2026
Patent 12727976
ZIRCONIA SURFACE TREATMENT METHOD
1y 10m to grant Granted Sep 08, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

2-3
Expected OA Rounds
58%
Grant Probability
82%
With Interview (+24.0%)
3y 3m (~1y 3m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 881 resolved cases by this examiner. Grant probability derived from career allowance rate.

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