Prosecution Insights
Last updated: April 19, 2026
Application No. 18/642,546

CONSTRAINT-ORIENTED PROGRAMMING APPROACH TO MECHANICAL ASSEMBLY DESIGN

Non-Final OA §DP
Filed
Apr 22, 2024
Examiner
KHAN, IFTEKHAR A
Art Unit
2187
Tech Center
2100 — Computer Architecture & Software
Assignee
Autodesk, Inc.
OA Round
3 (Non-Final)
78%
Grant Probability
Favorable
3-4
OA Rounds
3y 5m
To Grant
99%
With Interview

Examiner Intelligence

Grants 78% — above average
78%
Career Allow Rate
455 granted / 586 resolved
+22.6% vs TC avg
Strong +27% interview lift
Without
With
+26.7%
Interview Lift
resolved cases with interview
Typical timeline
3y 5m
Avg Prosecution
25 currently pending
Career history
611
Total Applications
across all art units

Statute-Specific Performance

§101
22.3%
-17.7% vs TC avg
§103
41.9%
+1.9% vs TC avg
§102
6.5%
-33.5% vs TC avg
§112
18.2%
-21.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 586 resolved cases

Office Action

§DP
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 . 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and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114.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 02/23/2026 has been entered. Double Patenting The non-statutory double patenting rejection is based on a judicially created doctrine grounded in public policy (a policy reflected in the statute) so as to prevent the unjustified or improper timewise extension of the “right to exclude” granted by a patent and to prevent possible harassment by multiple assignees. A non-statutory double patenting rejection is appropriate where the conflicting claims are not identical, but at least one examined application claim is not patentably distinct from the reference claim(s) because the examined application claim is either anticipated by, or would have been obvious over, the reference claim(s). See, e.g., In re Berg, 140 F.3d 1428, 46 USPQ2d 1226 (Fed. Cir. 1998); In re Goodman, 11 F.3d 1046, 29 USPQ2d 2010 (Fed. Cir. 1993); In re Longi, 759 F.2d 887, 225 USPQ 645 (Fed. Cir. 1985); In re Van Ornum, 686 F.2d 937, 214 USPQ 761 (CCPA 1982); In re Vogel, 422 F.2d 438, 164 USPQ 619 (CCPA 1970); In re Thorington, 418 F.2d 528, 163 USPQ 644 (CCPA 1969). A timely filed terminal disclaimer in compliance with 37 CFR 1.321(c) or 1.321(d) may be used to overcome an actual or provisional rejection based on non-statutory double patenting provided the reference application or patent either is shown to be commonly owned with the examined application, or claims an invention made as a result of activities undertaken within the scope of a joint research agreement. See MPEP § 717.02 for applications subject to examination under the first inventor to file provisions of the AIA as explained in MPEP § 2159. See MPEP § 2146 et seq. for applications not subject to examination under the first inventor to file provisions of the AIA . A terminal disclaimer must be signed in compliance with 37 CFR 1.321(b). The USPTO Internet website contains terminal disclaimer forms which may be used. Please visit www.uspto.gov/patent/patents-forms. The filing date of the application in which the form is filed determines what form (e.g., PTO/SB/25, PTO/SB/26, PTO/AIA /25, or PTO/AIA /26) should be used. A web-based e-Terminal Disclaimer may be filled out completely online using web-screens. An e-Terminal Disclaimer that meets all requirements is auto-processed and approved immediately upon submission. For more information about e-Terminal Disclaimers, refer to www.uspto.gov/patents/process/file/efs/guidance/eTD-info-I.jsp. 1. Claims 1-20 are rejected on the ground of non-statutory double patenting as being unpatentable over claims 1-20 of U.S. Patent No. 11,966,668. Although the claims at issue are not identical, they are not patentably distinct from each other because the claims of the ‘668 Patent include all the limitations of this Application as well as additional limitations. 2. Claims 1-20 are rejected on the ground of non-statutory double patenting as being unpatentable over claims 1-20 of U.S. Patent No. 10,885,236. Although the claims at issue are not identical, they are not patentably distinct from each other because the claims of the ‘236 Patent include all the limitations of this Application as well as additional limitations. Allowable Subject Matter 3. Claims 1-20 are allowable pending resolving all intervening issues such as the non-statutory Double Patenting rejection above. Reasons for allowance will be held in abeyance pending final recitation of the claims. . Correspondence Information Any inquiry concerning this communication or earlier communications from the examiner should be directed to IFTEKHAR A KHAN whose telephone number is (571)272-5699. The examiner can normally be reached on M-F from 9:00AM-6:00PM (CST). If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Emerson Puente can be reached on (571)272-3652. 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 Patent Center and the Private Patent Application Information Retrieval (PAIR) system. Status information for published applications may be obtained from Patent Center or Private PAIR. Status information for unpublished applications is available through Patent Center and Private PAIR to authorized users only. Should you have questions about access to the Private PAIR system, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). 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) Form at https://www.uspto.gov/patents/uspto-automated- interview-request-air-form. /IFTEKHAR A KHAN/Primary Examiner, Art Unit 2187
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Prosecution Timeline

Apr 22, 2024
Application Filed
May 15, 2025
Non-Final Rejection — §DP
Aug 18, 2025
Response Filed
Oct 22, 2025
Final Rejection — §DP
Dec 23, 2025
Response after Non-Final Action
Jan 26, 2026
Applicant Interview (Telephonic)
Jan 27, 2026
Examiner Interview Summary
Feb 23, 2026
Request for Continued Examination
Mar 06, 2026
Response after Non-Final Action
Mar 26, 2026
Non-Final Rejection — §DP (current)

Precedent Cases

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2y 5m to grant Granted Apr 07, 2026
Patent 12590509
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2y 5m to grant Granted Mar 31, 2026
Patent 12590519
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2y 5m to grant Granted Mar 31, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

3-4
Expected OA Rounds
78%
Grant Probability
99%
With Interview (+26.7%)
3y 5m
Median Time to Grant
High
PTA Risk
Based on 586 resolved cases by this examiner. Grant probability derived from career allow rate.

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