David F Stephens

US Patent:

7818683, Oct 19, 2010

Filed:

Dec 6, 2004

Appl. No.:

11/005628

Inventors:

Alexander Aaron Sorin - Scotts Valley CA, US
David R. Stephens - Half Moon Bay CA, US
Daniel Schwartz - New York NY, US

Assignee:

Oracle International Corporation - Redwood Shores CA

International Classification:

G06F 3/048
G06F 3/00

US Classification:

715768, 715854

Abstract:

A method of a navigational path includes enabling a user to successively display a plurality of web pages; maintaining a full breadcrumb path that includes a link to each of the previously displayed pages; displaying a shortened breadcrumb path on a current page, the shortened breadcrumb path including fewer links than the full breadcrumb path, and displaying the full breadcrumb path only upon request. A method of representing a current location within a hierarchical structure of a web site or web application includes maintaining a hierarchical map of the web site or web application; generating a web page that has a predetermined level within the hierarchical map; displaying a hierarchical structure selector on the web page, and when the displayed hierarchical structure selector is selected by a user, displaying an indication of the predetermined level and a link to each hierarchically higher level of the generated web page.

US Patent:

43885314, Jun 14, 1983

Filed:

Mar 6, 1981

Appl. No.:

6/241083

Inventors:

George C. Stafford - San Jose CA
David R. Stephens - San Jose CA

Assignee:

Finnigan Corporation - Sunnyvale CA

International Classification:

H01J 2700

US Classification:

250427

Abstract:

An ionizer adapted to be placed in a vacuum envelope for providing ions of a sample to be analyzed is disclosed herein and includes an electron source, ion accelerating and focusing electrodes and an interchangeable ionization chamber including a first opening for allowing electrons to enter the chamber and an exit opening to allow ions to exit said chamber. The ionization chamber is supported in cooperative relationship with the electron source and accelerating and focusing electrodes whereby electrons enter the chamber through the first opening and form sample ions in the chamber which then exit the chamber through the exit opening toward said accelerating and focusing electrodes.

US Patent:

45408840, Sep 10, 1985

Filed:

Dec 29, 1982

Appl. No.:

6/454351

Inventors:

George C. Stafford - San Jose CA
Paul E. Kelley - San Jose CA
David R. Stephens - San Jose CA

Assignee:

Finnigan Corporation - San Jose CA

International Classification:

B01D 5944

US Classification:

250282

Abstract:

In a quadrupole ion store or ion trap type mass spectometer, significantly improved mass selection is achieved by simultaneously trapping ions within the mass range of interest and then scanning the applied RF and DC voltages or the frequency. omega. to sequentially render unstable trapped ions of consecutive specific masses. These are passed out through apertures in an end cap to a high gain electron multiplier to provide a signal indicative of the ion mass. Sensitivity and mass resolution is also enhanced by operating the ion trap at a relatively high pressure in the range 1. times. 10. sup. -1 to 1. times. 10. sup. -5 torr. The presence of collision gas molecules, such as helium, improves sensitivity and mass resolution. In addition, the structure itself is built of stacked units, sealed by O-rings, which are easily disassembled for cleaning.

US Patent:

63105489, Oct 30, 2001

Filed:

May 30, 2000

Appl. No.:

9/580067

Inventors:

David Clark Stephens - Murray UT
Verlin Gene Russon - Lehi UT
Darrel Levan Russon - Snowflake AZ

Assignee:

RS Group, Inc. - Murray UT

International Classification:

G08B 2100

US Classification:

340540

Abstract:

The position of a monitored door is detected via a magnetic sensor. The detected positional information is digitally encoded and transmitted across power grid wiring within the home to at least one receiver. Based in part on the received positional information, a door alert indicator is activated. The system for door alert is also capable of monitoring multiple door or window openings via a network of interconnected sensors designed specifically for garages. Multiple door alert indicators may be placed throughout the home without interfering with the door status indicator system.