Prosecution Insights
Last updated: April 19, 2026
Application No. 18/452,909

PROVIDING TEMPORARY GUEST ACCESS TO A MEDIA PLAYBACK SYSTEM

Non-Final OA §103§DP
Filed
Aug 21, 2023
Examiner
PERUNGAVOOR, VENKATANARAY
Art Unit
2492
Tech Center
2400 — Computer Networks
Assignee
Sonos Inc.
OA Round
3 (Non-Final)
88%
Grant Probability
Favorable
3-4
OA Rounds
2y 10m
To Grant
91%
With Interview

Examiner Intelligence

Grants 88% — above average
88%
Career Allow Rate
877 granted / 999 resolved
+29.8% vs TC avg
Minimal +4% lift
Without
With
+3.5%
Interview Lift
resolved cases with interview
Typical timeline
2y 10m
Avg Prosecution
43 currently pending
Career history
1042
Total Applications
across all art units

Statute-Specific Performance

§101
13.6%
-26.4% vs TC avg
§103
43.7%
+3.7% vs TC avg
§102
16.7%
-23.3% vs TC avg
§112
11.9%
-28.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 999 resolved cases

Office Action

§103 §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 This office action is in response to the application filed on or reply to the remarks of 1/26/2026. The instant application has claims 1-20 pending. The system, method and medium for providing an guest account for an playback system There a total of 20 claims. 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and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114.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 1/26/2026 has been entered. Response to Arguments Applicant’s arguments with respect to claim(s) 1-20 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. 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 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 nonstatutory 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 filing of a terminal disclaimer by itself is not a complete reply to a nonstatutory double patenting (NSDP) rejection. A complete reply requires that the terminal disclaimer be accompanied by a reply requesting reconsideration of the prior Office action. Even where the NSDP rejection is provisional the reply must be complete. See MPEP § 804, subsection I.B.1. For a reply to a non-final Office action, see 37 CFR 1.111(a). For a reply to final Office action, see 37 CFR 1.113(c). A request for reconsideration while not provided for in 37 CFR 1.113(c) may be filed after final for consideration. See MPEP §§ 706.07(e) and 714.13. The USPTO Internet website contains terminal disclaimer forms which may be used. Please visit www.uspto.gov/patent/patents-forms. The actual 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 to www.uspto.gov/patents/apply/applying-online/eterminal-disclaimer. Claims 1-20 provisionally rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-20 of copending Application No. 18/413933 (reference application). Although the claims at issue are not identical, they are not patentably distinct from each other because both the instant claims and claims of ‘433 application recites the guest account being created for an time period for an playback system. Thus, the instant claims are obvious of claims of ‘433 application(based on same assignee). This is a provisional nonstatutory double patenting rejection because the patentably indistinct claims have not in fact been patented. US App # 18452909 US App # 18413933 Comments 1. A computing device comprising: at least one processor; and at least one non-transitory computer-readable medium comprising program instructions that are executable by the at least one processor such that the computing device is configured to: store data corresponding to a host account, the host account authorized to control a set of functionalities of a host media playback system comprising one or more playback devices; receive, from a control device, a request to communicate with at least one playback device of the host media playback system; based on a determination that the control device is not associated with the host account, generate a guest account, wherein the guest account is operative for a particular period of time and, during the particular period of time, both the host account and the guest account share control of at least one functionality in the set of functionalities; receive, from the control device, in one or more messages: (i) a set of data associated with the guest account; (ii) an indication to store the set of data and (iii) a guest identifier; after the particular period of time and based on the received one or more messages, store the set of data in association with the guest identifier; and based on receiving a request to generate a user account associated with the guest identifier, generate the user account using the set of data, wherein the user account is dissociated from the host media playback system. 1. A playback device comprising: at least one processor; at least one non-transitory computer-readable medium; and program instructions collectively stored on the at least one non-transitory computer-readable medium that are collectively executable by the at least one processor such that the playback device is configured to: play back media content accessed via a host account registered with the playback device; receive, via a host user device registered with the host account, an indication that the playback device is allowed to operate in a guest mode, wherein the guest mode allows the playback device to temporarily access media content via one or more guest accounts different than the host account registered with the playback device; receive a guest command to play back a media item, wherein the guest command is associated with a user of a guest account; and after receiving the guest command and while the playback device is allowed to operate in the guest mode: authenticate the user of the guest account; and access the media item via the guest account for playback by the playback device. 9. The playback device of claim 1, further comprising program instructions stored on the non-transitory computer-readable medium that are executable by the at least one processor such that the playback device is configured to dissociate the guest account from the playback device after a particular period of time. The instant claim 1 and claim 1 + claim 9 of ‘933 application essentially recites similar subject matter. That is, the guest account being created for an playback media system. The instant claim 1 has more details relating to guest identifier and functionalities allowed to be performed it would have been obvious at the time of filing to include an guest account having identifiers and set of functionalities allowed to be performed in order to limit the capability of the guest. Claim Rejections - 35 USC § 103 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. The factual inquiries for establishing a background for determining obviousness under pre-AIA 35 U.S.C. 103(a) are summarized as follows: 1. Determining the scope and contents of the prior art. 2. Ascertaining the differences between the prior art and the claims at issue. 3. Resolving the level of ordinary skill in the pertinent art. 4. Considering objective evidence present in the application indicating obviousness or nonobviousness. Claims 1-20 is/are rejected under 35 U.S.C. 103 as being unpatentable over US Patent 7874006 to Hassan in view of CN 109905769 to Hua. Regarding claim 1, 16, 20, Hassan discloses A computing device comprising: at least one processor; and at least one non-transitory computer-readable medium comprising program instructions that are executable by the at least one processor such that the the computing device is configured to: store data corresponding to a host account, the host account authorized to control a set of functionalities of a host media playback system comprising one or more playback devices;(Fig. 1 item 122, the compulsory directory has the host account details); receive, from a control device, a request to communicate with at least one playback device of the host media playback system(Fig. 1 item 104 & Fig. 2 item 202-206, the guest arrives to host company); based on a determination that the control device is not associated with the host account, generate a guest account, wherein the guest account is operative for a particular period of time and, during the particular period of time, both the host account and the guest account share control of at least one functionality in the set of functionalities(Fig. 2 item 208, guest account is created & Col 2 Ln 14-53, the guest account for use in enterprise); receive, from the control device, in one or more messages: (i) a set of data associated with the guest account(Col 5 Ln 23-27, the guest account is created for network access which includes user identifier); (ii) an indication to store the set of data and (iii) a guest identifier(Fig. 1 item 128, guest user directory for storing); after the particular period of time and based on the received one or more messages, store, a media playback system provider server that is remoter form the host media playback system,, the set of data in association with the guest identifier(Col 5 Ln 23-27, the guest account is created for network access which includes user identifier). Hassan does not disclose and based on receiving a request to generate a user account associated with the guest identifier, generate the user account using the set of data, wherein the user account is dissociated from the host media playback system and system identifier is associated with the user account, wherein the system identifier is associated with a new user media playback system that is different than the host media playback system and wherein the set of data is not retained by the host media playback system after the particular period of time. In the same field of endeavor as the claimed invention, Hua discloses based on receiving a request to generate a user account associated with the guest identifier, generate the user account using the set of data, wherein the user account is dissociated from the host media playback system(Page 11 ¶ starting “Specifically, of the operation of selecting…” to ¶ starting “S204: If no operation…” , first account and second account are linked and are switch by user’s operation & Page 12 ¶ “S303, if operation…”, the new second account is created that is a subaccount of first account); a system identifier is associated with the user account, wherein the system identifier is associated with a new user media playback system that is different than the host media playback system(Page 11 ¶ starting “Further, user logs in to … “ ¶ starting Further, according to permission…”, the terminal is synchronized with accounts also synchronized, a new media playback device is another terminal that is transferred via network and server & Page 7 ¶starting “In an application…” to ¶Starting S101, acquiring…”); wherein the set of data is not retained by the host media playback system after the particular period of time(Page 12 ¶ starting The main function of logic layer…”, the multi-terminal synchronization with the data being erased and updated in historical page & Page 9 ¶ starting “The first account…” to ¶ starting “S203…”, first account and second account information is deleted and updated) . It would have been obvious to one of ordinary skill in the art before the effective filing date of claimed invention to modify Hassan invention to incorporate based on receiving a request to generate a user account associated with the guest identifier, generate the user account using the set of data, wherein the user account is dissociated from the host media playback system and system identifier is associated with the user account, wherein the system identifier is associated with a new user media playback system that is different than the host media playback system and wherein the set of data is not retained by the host media playback system after the particular period of time for the advantage of taking advantage of cumbersome transfer of account between an family or new users that is added on different terminals and multiple users see Page 13 ¶ starting “The apparatus in the embodiments…” Regarding claim 2, 17, The combined device/medium of Hassan and Hua, mutatis mutandis, Hassan discloses the computing device of claim 1, wherein: the control device is prevented from communicating with the at least one playback device before the particular period of time starts and after the particular period of time ends(Col 1 Ln 50-59, the account valid for period time). Regarding claim 3, 18, The combined device/medium of Hassan and Hua, mutatis mutandis, Hassan discloses the computing device of claim 1, wherein: the particular period of time starts when a first condition is met(Col 1 Ln 50-59, the account valid for period time); and the particular period of time ends when a second condition is met(Col 1 Ln 50-59, the account valid for period time). Regarding claim 4, 19, The combined device/medium of Hassan and Hua, mutatis mutandis, Hassan discloses the computing device of claim 3, wherein: the host media playback system further comprises a host control device(Fig. 1 item 106, the host company network); and at least one of the first condition or the second condition is set via the host control device(Col 4 Ln 64- Col 5 Ln 3, the limited time period for operation). Regarding claim 5. The combined device of Hassan and Hua, Hassan discloses the computing device of claim 3, wherein: the first condition includes one or more of: a) a pre-set start time for the particular period of time(Col 1 Ln 50-59, the account valid for period time) ; or b) establishment of a token-authorized connection between the host media playback system and the control device(Col 1 Ln 50-59, the account valid for period time); and the second condition includes one or more of: a) a pre-set end time for the particular period of time; or b) end of the token-authorized connection between the host media playback system and the control device(Col 1 Ln 50-59, the account valid for period time). . Regarding claim 6. The combined device of Hassan and Hua, Hassan discloses the computing device of claim 1, wherein: the user account is associated with a user media playback system comprising one or more user playback devices (Fig. 1 item 102, 104); and the user media playback system is independent and distinct from the host media playback system(Fig. 1 item 102, 104). Regarding claim 7. The combined device of Hassan and Hua, Hassan discloses the computing device of claim 6, wherein the at least one non-transitory computer-readable medium further comprises program instructions such that the computing device is configured to: receive, from at least one user playback device of the user media playback system, a registration message, the registration message associated with the guest identifier(Fig. 1 item 128, the guest user directory for string accounts); based on receiving the registration message, generate a system identifier, wherein the system identifier uniquely registers the at least one user playback device as belonging to the user media playback system(Fig. 1 item 104, guest user device); and associate the system identifier with the user account(Col 4 Ln 38-51, the account is guest ID and password). Regarding claim 8. The combined device of Hassan and Hua, Hassan discloses the computing device of claim 6, wherein the at least one non-transitory computer-readable medium further comprises program instructions such that the computing device is configured to: receive, from at least one user playback device of the user media playback system, a registration message, the registration message associated with the guest identifier; and based on receiving the registration message, send the set of data to the at least one user playback device in the user media playback system(Col 4 Ln 15-27, the guest Id and credentials for access). Regarding claim 9. The combined device of Hassan and Hua, Hassan discloses the computing device of claim 6, wherein: the user media playback system is associated with a first globally unique system identifier; and the first globally unique system identifier is assigned to the user media playback system based on receiving the request to generate the user account associated with the guest identifier (Col 10 Ln 6-16, the guest access to network & Col 9 Ln 24-38). Regarding claim 10. The combined device of Hassan and Hua, Hassan discloses the computing device of claim 9, wherein: the host media playback system is associated with a second, different globally unique system identifier(Col 7 Ln 27-38, the credentials for access is unique). Regarding claim 11. The combined device of Hassan and Hua, Hassan discloses the computing device of claim 1, wherein the at least one non-transitory computer-readable medium further comprises program instructions such that computing device is configured to: access at least one service; and wherein the user account is an account authorized to access the at least one service(Col 10 Ln 6-16, the resource from enterprise network). Regarding claim 12. The combined device of Hassan and Hua, Hassan discloses the computing device of claim 11, wherein the at least one service is a media streaming service(Col 8 Ln 5-21, the IP services from enterprise network). Regarding claim 13. The combined device of Hassan and Hua, Hassan discloses the computing device of claim 1, wherein: the host media playback system is configured to play back media content from a queue of media items; and the at least one functionality in the set of functionalities comprises adding items to the queue of media items(Col 2 LN 3-13, the VLAN into all enterprise network resources). Regarding claim 14. The combined device of Hassan and Hua, Hassan discloses the computing device of claim 1, wherein: the guest account is configured to be associated with one or more media streaming service accounts (Col 10 Ln 6-16, the resource from enterprise network); and the set of data includes data corresponding to the one or more media streaming service accounts(Col 10 Ln 6-16, the resource from enterprise network). Regarding claim 15. The combined device of Hassan and Hua, Hassan discloses the computing device of claim 1, wherein the set of data comprises a history of media items played back the at least one playback device during the particular period of time(Col 1 Ln 50-59, the account valid for period time). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to Venkat Perungavoor whose telephone number is (571)272-7213. The examiner can normally be reached 9-5. 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, Rupal Dharia can be reached on 571-272-3880. 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. /VENKAT PERUNGAVOOR/Primary Examiner, Art Unit 2492 Email: venkatanarayan.perungavoor@uspto.gov
Read full office action

Prosecution Timeline

Aug 21, 2023
Application Filed
Jun 16, 2025
Non-Final Rejection — §103, §DP
Sep 08, 2025
Examiner Interview Summary
Sep 08, 2025
Applicant Interview (Telephonic)
Sep 11, 2025
Response Filed
Nov 03, 2025
Final Rejection — §103, §DP
Jan 26, 2026
Request for Continued Examination
Jan 30, 2026
Response after Non-Final Action
Mar 09, 2026
Non-Final Rejection — §103, §DP (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

3-4
Expected OA Rounds
88%
Grant Probability
91%
With Interview (+3.5%)
2y 10m
Median Time to Grant
High
PTA Risk
Based on 999 resolved cases by this examiner. Grant probability derived from career allow rate.

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