Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE42331 | Low impedance grounding electrode with universal connections and rapid access cap | Nathan M. Mascarenas, Darwin N. Sletten | 2011-05-10 |
| 7462776 | Low impedance grounding electrode with universal connections and rapid access cap | Nathan M. Mascarenas, Darwin N. Sletten | 2008-12-09 |
| 7236341 | Lightning termination preventer | — | 2007-06-26 |
| 7078621 | Grounding system for floating roofs in flammable storage tanks | Darwin N. Sletten | 2006-07-18 |
| 6515220 | Moisture collecting grounding electrode | — | 2003-02-04 |
| D419965 | Data line protector assembly | — | 2000-02-01 |
| 5936824 | Encapsulated MOV surge arrester for with standing over 100,000 amps of surge per doc | — | 1999-08-10 |
| 5932838 | Ionization cluster tree having tiers of spline ball ionizers | — | 1999-08-03 |
| D402637 | Telephone line surge protection assembly | — | 1998-12-15 |
| 5808850 | MOV surge arrester | — | 1998-09-15 |
| 5699818 | Personal safety system | — | 1997-12-23 |
| 5532897 | High-voltage surge eliminator | — | 1996-07-02 |
| 5519564 | Parallel MOV surge arrester | — | 1996-05-21 |
| 5073678 | Spline ball terminal (SBT) | — | 1991-12-17 |
| 5043527 | Dissipation array systems for lightning protection | — | 1991-08-27 |
| 4861940 | Automated moisturized grounding electrode system | — | 1989-08-29 |
| 4743997 | High-voltage systems surge eliminators for transmission lines and distribution station protection | — | 1988-05-10 |
| 4679114 | Method and equipment for lightning protection through electric potential neutralization | — | 1987-07-07 |
| 4591779 | Regulated a.c. power supply | Mark Drabkin | 1986-05-27 |
| 4467390 | Lightning protector and filter | — | 1984-08-21 |
| 4389695 | Equipment for protecting electronic equipment and personnel against inadvertent occurrence of extended or transient high voltages and method | — | 1983-06-21 |