Prosecution Insights
Last updated: April 19, 2026
Application No. 18/191,568

SPLIT-SCREEN DISPLAY CONTROL METHOD AND APPARATUS, ELECTRONIC DEVICE, AND STORAGE MEDIUM

Final Rejection §103
Filed
Mar 28, 2023
Examiner
NGUYEN, CHAU T
Art Unit
2145
Tech Center
2100 — Computer Architecture & Software
Assignee
Huawei Technologies Co., Ltd.
OA Round
2 (Final)
68%
Grant Probability
Favorable
3-4
OA Rounds
4y 0m
To Grant
99%
With Interview

Examiner Intelligence

Grants 68% — above average
68%
Career Allow Rate
372 granted / 549 resolved
+12.8% vs TC avg
Strong +32% interview lift
Without
With
+31.8%
Interview Lift
resolved cases with interview
Typical timeline
4y 0m
Avg Prosecution
31 currently pending
Career history
580
Total Applications
across all art units

Statute-Specific Performance

§101
14.0%
-26.0% vs TC avg
§103
48.5%
+8.5% vs TC avg
§102
15.9%
-24.1% vs TC avg
§112
12.2%
-27.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 549 resolved cases

Office Action

§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 . The amendment filed on 11/24/2025 has been entered. Claims 1-20 are pending. Claims 1, 10 and 17 have been amended. 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. The text of those sections of Title 35, U.S. Code not included in this action can be found in a prior Office action. The factual inquiries for establishing a background for determining obviousness under 35 U.S.C. 103 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 are rejected under 35 U.S.C. 103 as being unpatentable over Kim et al. (Kim), US Patent Application Publication No. US 2013/0120295 A1, in view of Shim et al. (Shim), US Patent Application Publication No. US 2019/0243516 A1, and further in view of Kim, US Patent Application Publication No. US 2018/0081538 A1 (hereinafter Kim’538). As to independent claim 1, Kim discloses a method, applied to an electronic device having a touchscreen, wherein the method comprises: in response to a first operation instruction for the touchscreen, entering a recently used task preview procedure (Figure 4A and paragraph [0103]: when the user touches the multi view mode button 226 or a mode switching button 288 (a recently used task preview procedure) on the touch screen); after the recently used task preview procedure is entered: obtaining a recently used task lists (Figures 4A-4C and paragraph [0103]: the controller 110 detects the touch and vertically displays the multi-application panel 230 on the right side of the main screen 210, which includes a plurality execution keys 212 comprising an execution key 212a. When the execution key 212a is touch, the multi-application panel 230 is displayed in a right part of the main screen 210. Thus, the muti application panel is considered as a recently used task lists; Also see paragraph [0095]: a window corresponding to the application most recently executed among the plurality of applications being executed); and displaying at least two tasks in the recently used task list in split screen on the touchscreen (Figure 4C and paragraphs [0103] and [0104]: the multi-application panel 230 includes a plurality of muti application sets 231, 232, 233,234 and 235 (tasks), each of the multi-application sets includes one main application and at least one sub application; Figure 5A and paragraphs [0116],[0117]: when the user touches the second multi-application set 232 in the multi-application panel 230, the controller 110 simultaneously executes the plurality of applications 232a and 232b included in the second multi applications and displays the applications 232a and 232b on the main screen 210; Figure 5B and paragraphs [0123], [0124]: shows the applications 232a and 232b displayed on the main screen 210 in the split mode); and in response to a third operation instruction for the touchscreen (paragraph [0125]: when the mode switching button 228 is touched in a state where the two windows 240 and 250 are arranged in the overlap mode as shown in Figure 5A): exiting the recently used task preview procedure (paragraph [0125]: the controller detects the touch to switch the two windows 240 and 250 to the split mode, and this means exiting the overlap mode (the recently used task preview procedure); opening applications that correspond to the at least two tasks displayed in split screen on the touchscreen (Figure 5B and paragraphs [0123], [0124]: shows the applications 232a and 232b displayed on the main screen 210 in the split mode); and simultaneously displaying, on the touchscreen, application interfaces of the applications corresponding to the at least two tasks displayed in split screen on the touchscreen (Figure 5B and paragraph [0123]: both application A and application B is displaying simultaneously on window 1 and window 2, respectively). Kim discloses Figure 7A and paragraphs [0132]-[0133]: when the user touches the fifth set 235 in the multi-application panel 230, the controller 110 simultaneously executes a plurality of applications 235a-c and displays the applications 235a-c on the main screen 210; Figure 7B: shows applications 235a-c are displayed in split mode). Thus, one of ordinary skill in the art would interpret that the teachings of Kim imply “in response to a second operation instruction for the touchscreen, changing any one of the at least two tasks displayed in split screen on the touchscreen to another task in the recently used task list”. To support Examiner’s interpretation, Shim discloses a method and an apparatus for changing a screen in an electronic device that provides a plurality of windows (Abstract). Shim further discloses in figure 3 and paragraph [0066] that the drawing of reference numeral 320 is displaying two applications A and B simultaneously in a split screen, and in detecting a user select icon 12 (application C), the controller may control the display unit to display an execution screen of the application C corresponding to the second icon 12 on the first split window, and the second split window may maintain the execution screen of the application B. It would have been obvious to one of ordinary skill in the art, before the effective filing date of the claimed invention, to modify the system of Kim to include “in response to a second operation instruction for the touchscreen, changing any one of the at least two tasks displayed in split screen on the touchscreen to another task in the recently used task list”, as taught by Shim for the purpose of allowing a user to select a desired application from the list and recognizing the window/interface in which application is being executed (Shim, paragraph [0006]). Kim and Shim, however, do not disclose wherein the recently used task list includes a plurality of tasks started by a user on the electronic device, and displaying at least two tasks of the plurality of tasks in the recently used task list in split screen on the touchscreen. In the same field of endeavor, Kim’538 discloses a mobile terminal and a method for controlling the same and providing a screen split view of execution screens of a plurality of applications included in a recently used list (Abstract). Kim’538 further discloses the mobile terminal comprises a display unit, a sensing unit and a controller, wherein the controller outputs a first recently used list, which includes at least some of recently used applications, to a location of an input means area of the display unit if a first input signal is sensed in an input mode of a first application, and outputs a screen split view, which includes an execution screen of the first application and an execution screen of a second application included in the first recently used list, if a second input signal for the second application is sensed (paragraph [0012]). Kim’538 further discloses in paragraph [0229] that the display unit may be provided as a type of touch screen together with the sensing unit. Kim’538 further discloses in paragraph [0242] that the recently used list may indicate a list of application executed by the user before the application which is currently executed is used, and the recently used list may indicate a list of three applications of a plurality of applications. It would have been obvious to one of ordinary skill in the art, before the effective filing date of the claimed invention, to modify the systems of Kim and Shim to include wherein the recently used task list includes a plurality of tasks started by a user on the electronic device, and displaying at least two tasks of the plurality of tasks in the recently used task list in split screen on the touchscreen, as taught by Kim’538 for the purpose of allowing execution screens of a plurality of applications to be output at the same time (Kim’538, paragraph [0008]). As to dependent claim 2, Kim discloses wherein before the displaying at least two tasks in the recently used task list in split screen on the touchscreen, the method further comprises: configuring the recently used task list to a last-in first-out stack structure comprising at least two columns (Figure 4A and paragraph [0253]); and dividing the touchscreen into display subareas of a corresponding quantity based on a quantity of column items in the recently used task list, wherein the display subarea comprises a first display window, wherein the displaying at least two tasks in the recently used task list in split screen on the touchscreen (Figures 4A-4C, 5B and paragraphs [0103] and [0123]) comprises: separately displaying stack top tasks in the recently used task list in first display windows of a corresponding quantity (Figures 4A-4C, 5B and paragraphs [0103] and [0123]). As to dependent claim 3, Kim discloses wherein the simultaneously displaying, on the touchscreen, application interfaces of the applications corresponding to the at least two tasks displayed in split screen on the touchscreen comprises: separately displaying, in the display subareas of the corresponding quantity, application interfaces of the applications corresponding to corresponding tasks, wherein when a task corresponds to a plurality of applications, a multi-application task is displayed in the following manner (Figures 4A-4C, 5B and paragraphs [0103] and [0123]): further dividing the display subarea corresponding to the multi-application task, so as to display application interfaces of the plurality of applications in the same display subarea in split screen (Figures 4A-4C, 5B, 7A and paragraphs [0103], [0123], [0133]-[0136]). As to dependent claim 4, Kim and Shim disclose wherein the method further comprises: in response to a fifth operation instruction for the display subarea, adjusting an application interface that is displayed in split screen in the display subarea and that corresponds to the multi- application task to be displayed in a floating window (Kim, paragraph [0103]; Shim, Figure 4, paragraphs [0076]-[0079]). As to dependent claim 5, Kim and Shim disclose wherein the simultaneously displaying, on the touchscreen, application interfaces of the applications corresponding to the at least two tasks displayed in split screen on the touchscreen comprises: separately displaying, in the display subareas of the corresponding quantity, application interfaces of the applications corresponding to corresponding tasks, wherein when a task corresponds to a plurality of applications, a multi-application task is displayed in the following manner (Kim, Figures 4A-4C and paragraph [0103]): displaying any application in the multi-application task in the corresponding display subarea (Kim, Figures 4A-4C and paragraph [0103]); and displaying remaining applications in the multi-application task in a floating window (Shim, Figure 4, paragraphs [0076]-[0079]). As to dependent claim 6, Kim and Shim disclose wherein the method further comprises: response to a fifth operation instruction for the display subarea, adjusting an application interface that is displayed in a floating window in the display subarea and that corresponds to the multi-application task to be displayed in split screen (Kim, paragraph [0103]; Shim, Figure 4, paragraphs [0076]-[0079]). As to dependent claim 7, Kim discloses wherein the method further comprises: in a state in which the touchscreen displays the application interfaces of the applications corresponding to the at least two tasks in split screen (Figures 4A-4C and paragraph [0103]): in response to a fourth operation instruction for the display subarea, exchanging positions of application interfaces of applications corresponding to any two of the at least two tasks (Figures 4A-4C and paragraph [0103]). As to dependent claim 8, Kim and Shim disclose wherein the method further comprises: in a state in which the touchscreen displays the application interfaces of the applications corresponding to the at least two tasks in split screen (Kim, Figures 4A-4C, 5A-5B, 6A-6B, 7A-7B): in response to a sixth operation instruction for the touchscreen: adjusting a stack position of a task in a corresponding column in the recently used task lists (Kim, paragraph [0103], [0146], [0166]-[0168]); controlling an original task in a second stack position to float and replace an original stack top tasks (Kim, Figure 4A and paragraph [0253]; Shim, Figure 4, paragraphs [0076]-[0079]); opening an application corresponding to a current stack top task (Kim, Figure 4A and paragraph [0253]; (Shim, Figure 4, paragraphs [0076]-[0079]); and displaying an application interface of the application corresponding to the current stack top task in a corresponding display subarea (Kim, Figure 4A and paragraph [0253]; (Shim, Figure 4, paragraphs [0076]-[0079]). As to dependent claim 9, Kim and Shim disclose wherein the method further comprises: in a state in which the touchscreen displays a single application interface (Kim, paragraph [0095]): in response to a seventh operation instruction for the touchscreen, entering an application parallel preview mode (Kim, paragraphs [0095]-[0097]); and in the application parallel preview mode and in response to a touch instruction for a function control of a current application (Kim, paragraphs [0095]-[0097]; Shim, Figures 4-7 and 8A-8E): dividing a current display area of the touchscreen into a display area A and a display area B (Kim, Figure 5B); controlling the display are A to display an original interface of the current application (Kim, paragraph [0146]); and controlling the display area B to display a new interface that responds to the touch instruction (Kim, paragraph [0146]). As to dependent claim 14, Kim discloses wherein the operations further comprise: in a state in which the touchscreen displays the application interfaces of the application corresponding to the at least two tasks in split screen (Kim, Figures 4a-4C): in response to a fifth operation instruction for the display subarea; adjusting an application interface that is displayed in split screen in the display subarea and that corresponds to the multi-application task to be displayed in a floating window (Kim, paragraph [0146]; Shim, Figure 4, paragraphs [0076]-[0079]); or adjusting an application interface that is displayed in a floating window in the display subarea and that corresponds to the multi-application task to be displayed in split screen (Kim, paragraph [0146]; Shim, Figure 4, paragraphs [0076]-[0079]). Claims 10-12, 13 and 15-16 are device claims that contain similar limitations of claims 1-3, 7 and 8-9, respectively. Therefore, claims 10-12, 13 and 15-16 are rejected under the same rationale. Claims 17-19 and 20 are medium claims that contain similar limitations of claims 1-3 and 7, respectively. Therefore, claims 17-19 and 20 are rejected under the same rationale. Response to Arguments Applicant’s arguments and amendments filed on 11/24/2025 have been fully considered but they are not deemed fully persuasive. Applicant’s arguments with respect to claims 1-20 have been considered but are moot in view of the new ground(s) of rejection as explained here below, necessitated by Applicant’s substantial amendment (i.e., wherein the recently used task list includes a plurality of tasks started by a user on the electronic device, and displaying at least two tasks of the plurality of tasks in the recently used task list in split screen on the touchscreen) to the claims which significantly affected the scope thereof. Please see the rejection above with additional newly cited prior art Kim’538. Conclusion THIS ACTION IS MADE FINAL. Applicant is reminded of the extension of time policy as set forth in 37CFR 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 extension fee 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. Any inquiry concerning this communication or earlier communications from the examiner should be directed to CHAU T NGUYEN whose telephone number is (571)272-4092. The examiner can normally be reached on Monday-Friday from 8am to 5pm. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Cesar Paula, can be reached at telephone number 5712724128. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. 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. 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). /CHAU T NGUYEN/Primary Examiner, Art Unit 2145
Read full office action

Prosecution Timeline

Mar 28, 2023
Application Filed
Aug 23, 2025
Non-Final Rejection — §103
Nov 24, 2025
Response Filed
Nov 24, 2025
Interview Requested
Dec 01, 2025
Applicant Interview (Telephonic)
Dec 01, 2025
Examiner Interview Summary
Feb 21, 2026
Final Rejection — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12596765
GENERATION AND USE OF CONTENT BRIEFS FOR NETWORK CONTENT AUTHORING
2y 5m to grant Granted Apr 07, 2026
Patent 12591795
METHOD FOR PROVIDING EXPLAINABLE ARTIFICIAL INTELLIGENCE
2y 5m to grant Granted Mar 31, 2026
Patent 12585722
IMAGE GENERATION SYSTEM, COMMUNICATION APPARATUS, METHODS OF OPERATING IMAGE GENERATION SYSTEM AND COMMUNICATION APPARATUS, AND STORAGE MEDIUM
2y 5m to grant Granted Mar 24, 2026
Patent 12579356
MATHEMATICAL CALCULATIONS WITH NUMERICAL INDICATORS
2y 5m to grant Granted Mar 17, 2026
Patent 12547825
WHITELISTING REDACTION SYSTEMS AND METHODS
2y 5m to grant Granted Feb 10, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

AI Strategy Recommendation

Get an AI-powered prosecution strategy using examiner precedents, rejection analysis, and claim mapping.
Powered by AI — typically takes 5-10 seconds

Prosecution Projections

3-4
Expected OA Rounds
68%
Grant Probability
99%
With Interview (+31.8%)
4y 0m
Median Time to Grant
Moderate
PTA Risk
Based on 549 resolved cases by this examiner. Grant probability derived from career allow 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