Prosecution Insights
Last updated: April 19, 2026
Application No. 18/665,840

HARDWARE MANAGEMENT OF DIRECT MEMORY ACCESS COMMANDS

Final Rejection §DP
Filed
May 16, 2024
Examiner
PEYTON, TAMMARA R
Art Unit
2184
Tech Center
2100 — Computer Architecture & Software
Assignee
Ati Technologies Ulc
OA Round
3 (Final)
91%
Grant Probability
Favorable
4-5
OA Rounds
2y 5m
To Grant
97%
With Interview

Examiner Intelligence

Grants 91% — above average
91%
Career Allow Rate
864 granted / 952 resolved
+35.8% vs TC avg
Moderate +6% lift
Without
With
+6.1%
Interview Lift
resolved cases with interview
Typical timeline
2y 5m
Avg Prosecution
20 currently pending
Career history
972
Total Applications
across all art units

Statute-Specific Performance

§101
6.5%
-33.5% vs TC avg
§103
63.2%
+23.2% vs TC avg
§102
8.4%
-31.6% vs TC avg
§112
5.3%
-34.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 952 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 . DETAILED ACTION Double Patenting The nonstatutory 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 nonstatutory double patenting rejection is appropriate where the claims at issue 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); and 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 a nonstatutory double patenting ground provided the reference application or patent either is shown to be commonly owned with this 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 §§ 706.02(1) (1) - 706.02(1) (3) 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/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 eTerminal Disclaimer may be filled out completely online using web-screens. An eTerminal Disclaimer that meets all requirements is auto-processed and approved immediately upon submission. For more information about eTerminal Disclaimers, refer Claim 1 and 21 are rejected on the ground of nonstatutory obviousness-type double patenting as being unpatentable overclaim 1 of U.S. Patent No. 11,995,351. Although the conflicting claims are not identical, they are not patentably distinct from each other because the claims of the instant application are just the broader claims of the Patent No. 11,995,351. Claims 21-40 of the instant application is rejected. Claim 1 of the instant application is comparing to claim 1 of 11,995,351 as follows: Instant Application 11,995,351 21. (New) A processor, comprising: a first direct memory access (DMA) engine configured to initiate, based at least in part on a DMA transfer command, transfer of a first portion of a data transfer; and a second DMA engine configured to initiate independent of the first DMA engine , based at least in part on the DMA transfer command, transfer of a second portion of the data transfer. A method, comprising: initiating, based at least in part on a DMA transfer command, transfer of a first portion of a data transfer by a first DMA engine; and initiating, based at least in part on the DMA transfer command, transfer of a second portion of the data transfer by a second DMA engine. Claim 1 of US Patent 11,995,351 teaches more of all of the elements of claims 21-28 from the 18/665,840. Although the conflicting claims are not identical, they are not patentably distinct from each other because the claims of the instant application are just the broader claims of the Patent No. 11,995,351. Therein, claims 21-40 are rejected on the grounds of nonstatuory double patenting. 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. The examiner requests, in response to this office action, support be shown for language added to any original claims on amendment and any new claims. That is, indicate support for newly added claim language by specifically pointing to page(s) and line number(s) in the specification and/or drawing figure(s). This will assist the examiner in prosecuting the application. When responding to this office action, applicant is advised to clearly point out the patentable novelty which he or she thinks the claims present, in view of the state of art disclosed by the references cited or the objections made. He or she must also show how the amendments avoid such references or objections. See 37 C.F.R.I .Hi(c). In amending in reply to a rejection of claims in an application or patent under reexamination, the applicant or patent owner must clearly point out the patentable novelty which he or she thinks the claims present in view the state of the art disclosed by the references cited or the objections made. The applicant or patent owner must also show how the amendments avoid such references or objections. Any inquiry concerning this communication or earlier communications from the examiner should be directed to TAMMARA R PEYTON whose telephone number is (571)272-4157. The examiner can normally be reached on 9am-5pm, EST M-F. 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, Henry Tsai can be reached on 571-272-4176. 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. /TAMMARA R PEYTON/Primary Examiner, Art Unit 2184 February 21, 2026
Read full office action

Prosecution Timeline

May 16, 2024
Application Filed
Mar 20, 2025
Non-Final Rejection — §DP
Jun 09, 2025
Response Filed
Aug 17, 2025
Non-Final Rejection — §DP
Nov 12, 2025
Response Filed
Feb 21, 2026
Final Rejection — §DP (current)

Precedent Cases

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

4-5
Expected OA Rounds
91%
Grant Probability
97%
With Interview (+6.1%)
2y 5m
Median Time to Grant
High
PTA Risk
Based on 952 resolved cases by this examiner. Grant probability derived from career allow rate.

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