Issued Patents All Time
Showing 1–25 of 82 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9697714 | Location of cooperative tags with personal electronic device | Lawrence J. Karr | 2017-07-04 |
| 9392332 | Apparatus and method for parental control using V-Chip plus+ and master password | Wing P. Leung, Henry C. Yuen | 2016-07-12 |
| 9392413 | Location of cooperative tags with personal electronic device | Lawrence J. Karr | 2016-07-12 |
| 9113122 | Method and apparatus for time-shifting video and text in a text-enhanced television program | — | 2015-08-18 |
| 9055341 | Combination of recorded program index and EPG | Henry C. Yuen, Daniel S. Kwoh, Elsie Y. Leung | 2015-06-09 |
| 9042916 | Location of cooperative tags with personal electronic device | Lawrence J. Karr | 2015-05-26 |
| 8914828 | System and method for grazing television channels from an electronic program guide | Henry C. Yuen, Daniel S. Kwoh, Elsie Y. Leung | 2014-12-16 |
| 8895042 | Non-toxic and environmentally compatible photo-protective preparations | — | 2014-11-25 |
| 8761584 | System and method for searching a database of television schedule information | — | 2014-06-24 |
| 8635642 | Apparatus and method for parental control using V-Chip plus+ and master password | Wing P. Leung, Henry C. Yuen | 2014-01-21 |
| 8583145 | Location of cooperative tags with personal electronic device | Lawrence J. Karr | 2013-11-12 |
| 8272011 | Method and system for displaying advertisements between schedule listings | Henry C. Yuen, Daniel S. Kwoh, Elsie Y. Leung | 2012-09-18 |
| RE43594 | Electronic television program guide delivery system using telephone network idle time | — | 2012-08-21 |
| 8134645 | Combination of recorded program index and EPG | Henry C. Yuen, Daniel S. Kwoh, Elsie Y. Leung | 2012-03-13 |
| 8006260 | Apparatus and method for parental control using V-chip plus+ and master password | Wing P. Leung, Henry C. Yuen | 2011-08-23 |
| 7996864 | Method and apparatus for displaying television programs and related text | Henry C. Yuen, Daniel S. Kwoh, Elsie Y. Leung | 2011-08-09 |
| 7917155 | Location of cooperative tags with personal electronic device | Lawrence J. Karr | 2011-03-29 |
| RE41993 | Apparatus and method for improved parental control of television use | Henry C. Yuen, Daniel S. Kwoh | 2010-12-07 |
| 7663700 | Combination of recorded program index and EPG | Henry C. Yuen, Daniel S. Kwoh, Elsie Y. Leung | 2010-02-16 |
| 7594243 | System and method for grazing television channels from an electronic program guide | Henry C. Yuen, Daniel S. Kwoh, Elsie Y. Leung | 2009-09-22 |
| RE40836 | Apparatus and methods for providing text information identifying audio program selections | — | 2009-07-07 |
| 7499628 | Enhancing operations of video tape cassette players | Henry C. Yuen, Daniel S. Kwoh, Carl Hindman, Hing Y. Ngai, Yee Kong Ng +1 more | 2009-03-03 |
| 6987842 | Electronic television program guide delivery system using telephone network idle time | — | 2006-01-17 |
| RE38600 | Apparatus and methods for accessing information relating to radio television programs | — | 2004-09-28 |
| 6783754 | Plant-based non-toxic sunscreen products | — | 2004-08-31 |