Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6778413 | Asymmetric multi-converter power supply including a fast response converter | — | 2004-08-17 |
| 6721150 | Clamping circuit for use in computer system | Edward C. Guerrero, Jr., Christopher E. Tressler | 2004-04-13 |
| 6577515 | Asymmetric power supply including a fast response converter | — | 2003-06-10 |
| 6337557 | External universal battery charging apparatus and method | Greg R. Fiebrich | 2002-01-08 |
| 6307377 | Battery charge determination | John A. Cummings | 2001-10-23 |
| 6218815 | Method and apparatus for a multiple stage sequential synchronous regulator | Edward P. Sheehan, Jr. | 2001-04-17 |
| 6194867 | Adaptive multiple battery charging apparatus | John A. Cummings | 2001-02-27 |
| 6191552 | External universal battery charging apparatus and method | Greg R. Fiebrich | 2001-02-20 |
| 6181588 | Constant polarity input device including synchronous bridge rectifier | John A. Cummings | 2001-01-30 |
| 6172883 | Redirected sequential flyback regulator | John A. Cummings | 2001-01-09 |
| 6137267 | Reverse current protection/current overshoot control for two quadrant battery chargers | John A. Cummings | 2000-10-24 |
| 6137265 | Adaptive fast charging of lithium-ion batteries | John A. Cummings | 2000-10-24 |
| 6130509 | Balanced feedback system for floating cold cathode fluorescent lamps | John A. Cummings | 2000-10-10 |
| 6130813 | Protection circuit for electronic devices | John A. Cummings | 2000-10-10 |
| 6127809 | Adaptive power battery charging apparatus | Edward P. Sheehan, Jr. | 2000-10-03 |
| 6108215 | Voltage regulator with double synchronous bridge CCFL inverter | John A. Cummings | 2000-08-22 |
| 6075352 | Redirected sequential flyback synchronous rectifier | John A. Cummings | 2000-06-13 |
| 6058034 | Current converter and source identification and detection | John A. Cummings | 2000-05-02 |
| 5973485 | Method and apparatus for a multiple stage sequential synchronous regulator | Edward P. Sheehan, Jr. | 1999-10-26 |
| 5955867 | Dual battery pack charging in a computer system | John A. Cummings | 1999-09-21 |
| 5939862 | Adaptive power battery charging apparatus | Edward P. Sheehan, Jr. | 1999-08-17 |
| 5864457 | System and method for controlling current flow in an AC adapter | Alan E. Brown | 1999-01-26 |
| 5698964 | Adaptive power battery charging apparatus | Edward P. Sheehan, Jr. | 1997-12-16 |
| 5430641 | Synchronously switching inverter and regulator | — | 1995-07-04 |
| 5355077 | High efficiency regulator with shoot-through current limiting | — | 1994-10-11 |