| 7452449 |
Apparatus for electrolysis of water |
Norman L. Weinberg, Klaus Tomantschger, Robert Feldstein, J. David Genders |
2008-11-18 |
| 6959599 |
Level detector for storage tanks for fluids |
Robert Feldstein, Donald Edward Hewson |
2005-11-01 |
| 6880396 |
Level indicator having thermochromic leucodye inks |
— |
2005-04-19 |
| 6797134 |
Pulsed power supply for electrochemical cell |
Norman L. Weinberg, Klaus Tomantschger, Robert Feldstein, J. David Genders |
2004-09-28 |
| 6761066 |
Level indicator |
— |
2004-07-13 |
| 6638413 |
Methods and apparatus for electrolysis of water |
Norman L. Weinberg, Klaus Tomantschger, Robert Feldstein, J. David Genders |
2003-10-28 |
| 5429611 |
Syringe with automatically actuated shield |
— |
1995-07-04 |
| 5302274 |
Electrochemical gas sensor cells using three dimensional sensing electrodes |
Klaus Tomantschger, Allan A. Janis, Norman L. Weinberg |
1994-04-12 |
| 5186830 |
Water filtration apparatus |
— |
1993-02-16 |
| 5173166 |
Electrochemical gas sensor cells |
Klaus Tomantschger, Allan A. Janis, Norman L. Weinberg |
1992-12-22 |
| 4453154 |
Altitude monitor |
David Dhanens |
1984-06-05 |
| 4358955 |
Liquid level gauge |
— |
1982-11-16 |
| 4332560 |
Particle collector for use with dental suction apparatus |
— |
1982-06-01 |
| 4288919 |
Safety razor with means to slidably mount cartridge |
— |
1981-09-15 |