David A Feder

US Patent:

39805018, Sep 14, 1976

Filed:

Jun 19, 1974

Appl. No.:

5/480703

Inventors:

David Oscar Feder - Madison NJ
Dean William Maurer - Berkeley Heights NJ

Assignee:

Bell Telephone Laboratories, Incorporated - Murray Hill NJ

International Classification:

H01M 1034
H01M 1052

US Classification:

429 60

Abstract:

Alkaline batteries are described in which a special electrode is incorporated in the positive electrode in order to give added protection against electrochemical damage due to battery reversal. This special electrode contains a hydrogen-absorbing material which also acts as a hydrogen electrode for the conversion of hydrogen ions into elemental hydrogen. Such alkaline batteries are particularly well protected against hydrogen overpressure due to battery reversal with only a small penalty in energy density. Particularly suitable for this application is the use of a hydrogen-absorbing material with nominal formula LnM. sub. 5 in which Ln represents a lanthanide metal and M is either cobalt or nickel.

US Patent:

20200053400, Feb 13, 2020

Filed:

Aug 8, 2018

Appl. No.:

16/058806

Inventors:

- Burbank CA, US
David Feder - San Francisco CA, US
Alif Khalfan - Burbank CA, US
Thomas M. DeKeyser - Sunnyvale CA, US

International Classification:

H04N 21/238
H04N 21/214
H04W 4/021
A63F 13/216

Abstract:

A system configured to provide users with interactive experiences on a set of one or more vehicles. The interactive experiences have narrative, leveling, or other persistent or shared aspects may be presented to users over a set of sessions in which the users (individually or as a group) are passengers in the set of one or more vehicles. The progress made by the users in a session is saved such that the users may continue the progress made in a following session in the set of one or more vehicles.

US Patent:

20180078858, Mar 22, 2018

Filed:

Sep 20, 2016

Appl. No.:

15/270628

Inventors:

- Burbank CA, US
David FEDER - San Francisco CA, US
Thomas DEKEYSER - San Carlos CA, US
Alif KHALFAN - Redwood City CA, US

International Classification:

A63F 13/655
A63F 13/212
A63F 13/211
A63F 13/215
A63F 13/217
A63F 13/216

Abstract:

Systems, methods and articles of manufacture for manipulating an interactive gameplay of a mobile device in real-time based on a state of a physical environment in which the mobile device is located. Embodiments include receiving, from one or more sensor devices of the mobile device during an interactive gameplay of an application on the mobile device, data characteristic of operating conditions of the environment in which the mobile device is located. Once the application determines that data received from the sensors satisfies conditions configured on the application for each type of sensor device, embodiments determine whether to manipulate the interactive gameplay by querying a remote database for one or more gameplay effects corresponding to the data. Once a response identifying at least one gameplay effect associated with the data is received, embodiments manipulate the interactive gameplay based on the identified gameplay effect.