Whatsapp Inc.

Michael B Donohue

Brian Lange Acton

Jan Boris Koum

Erik James Reed

Eugene Fooksman

Randall Sarafa

Ehren Andrew Kret

Dima Stukalov

Bryan Dennis O'Connor

Charles Donald Deets, Jr

Alan Liu

Anton Borzov

Vicki Wancheng Lee

Clark Chen

Manpreet Singh

Dmitri Stukalov

Kuan Loong Yong

Exemplary embodiments relate to techniques for transmitting ephemeral content messages. A sending client may establish an end-to-end encrypted session with possible recipients of the message, using a first decryption key during initial session setup. The client may send an ephemeral content message, including encrypted content and a second key, to the recipients through a server. The server may be unable to retrieve the encrypted content due to a lack of the second key. The server may filter a list of intended recipients, and may forward the ephemeral content message to the recipients on the filtered list. The recipients may retrieve the second key from the message, and use the first and second keys to decrypt the encrypted content. The sending client may change the second key each time the recipient list changes from the perspective of the sending client, as determined at the time the ephemeral content message is transmitted.

Methods and systems for processing an ephemeral content message

A system, apparatus, and methods are provided for facilitating payment for a third party's use of an application by a current user. The current user, or payor, initiates the process within the application by selecting one or more recipients. The system that hosts the application then determines which of the third parties are eligible. A target recipient may be ineligible because her application subscription never expires, because it doesn't expire within a threshold period of time, or for some other reason. The system identifies the target recipients that are eligible, and the payor may configure the gift payment (e.g., by choosing a duration of the subscription). The payor then chooses a method of electronic payment and, depending on the method selected, may redeem a coupon with the application host system, or the process may complete automatically. The payor and/or the recipient(s) may be notified of successful activation of the subscription(s).

System and method for facilitating payment for a third party's application subscription

Methods and systems for processing an ephemeral con tent message

Exemplary embodiments relate to techniques for sending ephemeral content messages via a communications service. An interface may be presented to allow a user to initially access ephemeral content functionality and select content for inclusion in the ephemeral content message. The interface may present a streamlined set of use cases without regard to the manner in which the content was initially captured. Different types of content may be used as ephemeral content, including images, videos, weather reports, news stories, text, audio recordings, location tags, etc. The ephemeral content may be sent through the communications service as an end-to-end encrypted message. When a user replies to an ephemeral content message, the reply may trigger a one-to-one conversation between the originating user and the replying user. Alternatively, an ephemeral content message may be initially sent to a selected group, and replies may be sent back to the entire group.

Methods and systems for generating an ephemeral content message

Exemplary embodiments relate to techniques for managing contact information received in the context of a messaging system. Messages may be received from known contacts which contain user contact records for third parties. Based on the trust relationship with the known contacts, the user contact record is placed in a contact record repository for later retrieval. When another message is received which either references the user contact record or is from the third party referenced in the user contact record, a dialog box is presented offering the user the opportunity to add the user contact record as an address entry in the address book of the device.

Techniques to manage contact records

A system, apparatus, graphical user interface and methods are provided for conducting electronic voice communications with status notifications. A user of a first portable device executing a communication application selects a multi-function control that automatically initiates an audio recording, which is automatically sent toward another participant of an active communication session when the control is released. The same multi-function control may be used to transmit a textual message. A representation of the recording is displayed on the user's device, with an indicator that changes appearance when the other participant plays the recording. In addition, when one user initiates an audio recording that will be automatically sent to another user, the other user's device is advised of the initiation of recording and displays that status for the other user.

Voice communications with real-time status notifications

Techniques to visualize messaging flow are described. In one embodiment, an apparatus may comprise a messaging component operative to receive a message package at a client device, the message package comprising a primary message portion and a quoted message portion, the quoted message portion comprising a quoted message identifier; determine whether a quoted message store corresponding to the quoted message identifier is present on the client device; retrieve a primary message from the primary message portion; retrieve a quoted message based on the quoted message store where the quoted message store corresponding to the quoted message identifier is present on the client device; and retrieve the quoted message from the quoted message portion of the message package where the quoted message store corresponding to the quoted message identifier is not present on the client device. Other embodiments are described and claimed.

Techniques to visualize messaging flow

Exemplary embodiments relate to techniques for displaying and interacting with ephemeral content messages in a communication service. Ephemeral content, transmitted as a message in order to preserve end-to-end encryption, may be tagged with an identifier designating the message as an ephemeral content message. A receiving client may recognize the flag and display the content of the message as ephemeral content. The update may include a link to the content that expires under certain conditions. While the link is active, the link may be selected to enter a full-screen presentation of the ephemeral content. Different media types may be associated with different types of full-screen presentations. Displayed ephemeral content from different users may be ranked based on an interest score and displayed in the ranked order. Ephemeral content may be displayed in a user interface on separate tabs.

Methods and systems for displaying an ephemeral content message

A system, apparatus, and methods are provided for supporting automated recall of a message (e.g., a chat message) from an originator's device, or at least media that accompanied the message. An original message may convey one or more media files that are temporarily stored on a system or apparatus that hosts the communication application used to create, send, and receive messages. The media files may be lost in transit because of failure of a system component, failure of a storage device, purging of the files before they are retrieved by a recipient, or for some other reason. When the recipient's device receives an error in response to an attempt to retrieve the media file(s), it automatically initiates a recall request that is returned to the originating device. If the message and media are still available on the device, an abbreviated version of the message is re-sent, with the media.

Growing community of inventors

Mountain View, CA, United States of America

Michael B Donohue