| 8264265 |
Automatic darkening filter (ADF) eye protection device with improved drive circuitry |
Donald William Greiner |
2012-09-11 |
| 8119974 |
Microprocessor based automatically dimmable eye protection device with interruption prevention |
Barry D. Scott |
2012-02-21 |
| 7868278 |
Eye-protection device having dual high voltage switching |
— |
2011-01-11 |
| 7755019 |
Microprocessor based automatically dimmable eye protection device with interruption prevention |
Barry D. Scott |
2010-07-13 |
| 7750283 |
Microprocessor based automatically dimmable eye protection device with interruption prevention |
Barry D. Scott |
2010-07-06 |
| 7659495 |
Auto darkening eye protection device having a regulated solar power supply |
— |
2010-02-09 |
| 7446292 |
Eye-protection device having dual high voltage switching |
— |
2008-11-04 |
| 7358472 |
Low power phototransistor-based welding helmet providing reduced sensitivity to low intensity light and sharp phototransistor response to high intensity light |
— |
2008-04-15 |
| 7232988 |
Microprocessor based automatically dimmable eye protection device with interruption prevention |
Barry D. Scott |
2007-06-19 |
| 7180047 |
Eye-protection device having dual high voltage switching |
— |
2007-02-20 |
| 7026593 |
Eye-protection device having dual high voltage switching |
— |
2006-04-11 |
| 7005624 |
Low power phototransistor-based welding helmet providing reduced sensitivity to low intensity light and sharp phototransistor response to high intensity light |
— |
2006-02-28 |
| 6884987 |
Microprocessor based automatically dimmable eye protection device with interruption prevention |
Barry D. Scott |
2005-04-26 |
| 6881939 |
Microprocessor based automatically dimmable eye protection device |
Barry D. Scott |
2005-04-19 |
| 6855922 |
Low power phototransistor-based welding providing reduced sensitivity to low intensity light and sharp phototransistor response to high intensity light |
— |
2005-02-15 |
| 6841772 |
Eye-protection device having dual high voltage switching |
— |
2005-01-11 |
| 6815652 |
Low power phototransistor-based welding helmet providing reduced sensitivity to low intensity light and sharp phototransistor response to high intensity light |
— |
2004-11-09 |
| 6070264 |
Welding helmet having auto-darkening and manually adjustable lens shade control |
Steven F. Kickham, Jerry C. Cole, David Allen Shamery |
2000-06-06 |
| 5356251 |
Collapsible void filling apparatus |
Robert W. Sisco |
1994-10-18 |
| 4516891 |
Suspended type cellular void filler |
Paul A. Wnuk, Anthony Trassare, Jr., Michael Oliver |
1985-05-14 |