Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8056147 | Necktie having fastening system for securing necktie to shirt button | — | 2011-11-15 |
| 7805139 | Wireless communication system that supports multiple standards, multiple protocol revisions, multiple extended services and multiple extended services delivery options and method of operation therefor | Kamel M. Shaheen, Chenhong Huang, Mark O'Brien | 2010-09-28 |
| 7580707 | Wireless communication system that supports multiple standards, multiple protocol revisions, multiple extended services and multiple extended services delivery options and method of operation therefor | Kamel M. Shaheen, Chenhong Huang, Mark O'Brien | 2009-08-25 |
| 6891435 | System and method for reducing second order distortion in electronic circuits | James M. Douglass | 2005-05-10 |
| 6438369 | Network directed system selection for cellular and PCS enhanced roaming | Chenhong Huang, Kim Chang | 2002-08-20 |
| 6363339 | Dynamic vocoder selection for storing and forwarding voice signals | Rafi Rabipour | 2002-03-26 |
| 6363251 | Network directed system selection for cellular and PCS enhanced roaming | Chenhong Huang, Kim Chang | 2002-03-26 |
| 6219539 | Systems and methods for implementing private wireless communications | Kalyan Basu, Chenhong Huang | 2001-04-17 |
| 6169893 | Wireless communication system that supports multiple standards, multiple protocol revisions, multiple extended services and multiple extended services delivery options and method of operation therefor | Kamel M. Shaheen, Chenhong Huang, Mark O'Brien | 2001-01-02 |
| 6058309 | Network directed system selection for cellular and PCS enhanced roaming | Chenhong Huang, Kim Chang | 2000-05-02 |
| 5897767 | Composition and process for the treatment and recovery of oil sludge | — | 1999-04-27 |
| 4903263 | Apparatus and method for providing existing telephone switching equipment with integrated services digital network capability | Rajendra Patel | 1990-02-20 |
| 4898881 | Dry microbiocidal composition containing an ethylene bis-dithiocarbamate salt | James H. Belcher, deceased | 1990-02-06 |
| 4853955 | Apparatus and method for providing existing telephone switching equipment with the capability of using the SS7 protocol | David Thorn, Rajendra Patel, Gerald K. Coley, Ashok Trivedi | 1989-08-01 |