Wendy W Yang

US Patent:

7949642, May 24, 2011

Filed:

Oct 11, 2005

Appl. No.:

11/248480

Inventors:

Wendy W Yang - San Mateo CA, US
Stan J Simon - San Mateo CA, US

International Classification:

G06F 7/00

US Classification:

707706

Abstract:

A system and method for managing and presenting entity information is described. In an illustrative implementation, information such as product availability and operating hours is stored in a server (). A query may be sent from a client () having a time (), date (), or both inquiring, for example, which entities are open at a certain or range of times, in the past, present or future. The server () compares the queried time with stored information, such as hours entries (). The results are displayed on a map () with open entities represented by a first symbol (R) and closed entities by a second symbol (G) such that all the entities on the map () are viewable without further searches. Clicking on a symbol () leads to a display () containing information about the associated entity, thereby enabling an entity's information to be found using only its location.

US Patent:

20020042061, Apr 11, 2002

Filed:

Mar 12, 2001

Appl. No.:

09/804661

Inventors:

Qinghong Yang - Mountain View CA, US
Wendy Yang - Mountain View CA, US
Alla Lishanski - San Jose CA, US

International Classification:

C12Q001/68

US Classification:

435/006000

Abstract:

The present invention provides methods for detecting the presence or absence of a difference between two related nucleic acid sequences. In the methods, a target nucleic acid and a reference nucleic acid are contacted under conditions in which they are capable of forming a four-way nucleic acid complex with a branch structure that is capable of migration. Under the contact conditions, if the reference nucleic acid and target nucleic acid are identical, branch migration is capable of going to completion resulting in complete strand exchange. If the reference nucleic acid and target nucleic acid are different, branch migration does not go to completion, resulting in a stable four-way complex. Detection of the stable four-way complex identifies the presence of a difference between the nucleic acids. A stable four-way complex can be detected with molecules that specifically bind such complexes, by gel electrophoresis or by specific isolation of the stable four-way complex.

US Patent:

20040235004, Nov 25, 2004

Filed:

Sep 26, 2003

Appl. No.:

10/672397

Inventors:

Qinghong Yang - Mountain View CA, US
Wendy Yang - Mountain View CA, US
Alla Lishanski - San Jose CA, US

International Classification:

C12Q001/68

US Classification:

435/006000

Abstract:

The present invention provides methods for detecting the presence or absence of a difference between two related nucleic acid sequences. In the methods, a target nucleic acid and a reference nucleic acid are contacted under conditions in which they are capable of forming a four-way nucleic acid complex with a branch structure that is capable of migration. Under the contact conditions, if the reference nucleic acid and target nucleic acid are identical, branch migration is capable of going to completion resulting in complete strand exchange. If the reference nucleic acid and target nucleic acid are different, branch migration does not go to completion, resulting in a stable four-way complex. Detection of the stable four-way complex identifies the presence of a difference between the nucleic acids. A stable four-way complex can be detected with molecules that specifically bind such complexes, by gel electrophoresis or by specific isolation of the stable four-way complex.