Issued Patents All Time
Showing 1–25 of 50 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12113341 | Power inlet box with circuit protection | Curtis Kell, Benjamin F. Flegel | 2024-10-08 |
| 11050203 | Adapter system for connecting electrical sources to loads | Benjamin F. Flegel, Joseph Kampschroer, Chris Flegel | 2021-06-29 |
| 10193381 | Load management and switching devices and methods | — | 2019-01-29 |
| 9711967 | Off grid backup inverter automatic transfer switch | — | 2017-07-18 |
| 9583942 | Transfer switch for automatically switching between alternative energy source and utility grid | — | 2017-02-28 |
| 9312083 | Threaded rod-and-spacer switch handle tie | — | 2016-04-12 |
| 9276346 | Gasketless flip lid for a flanged power inlet receptacle | — | 2016-03-01 |
| 9116178 | Circuit tester with variable volume audible voltage indication | — | 2015-08-25 |
| 9054447 | Electrical connector using air heated by an electrical arc during disengagement of contacts to extinguish the electrical arc | — | 2015-06-09 |
| 9035204 | Switch assembly with sequentially actuated power and neutral switching | — | 2015-05-19 |
| 8998657 | High current female electrical contact assembly | Kurt von Eckroth | 2015-04-07 |
| 8964345 | Semiautomatic transfer switch with open neutral protection | — | 2015-02-24 |
| 8941269 | System and method to reduce electrical transients | Jeffrey D. Flegel | 2015-01-27 |
| 8891219 | Open neutral protection | — | 2014-11-18 |
| 8885328 | Transfer switch housing having rear wall mounted switches | — | 2014-11-11 |
| 8755172 | Modular housing for a transfer switch having panel-mounted power transfer switching components | — | 2014-06-17 |
| 8559167 | Modular Housing for a transfer switch | — | 2013-10-15 |
| 8395884 | Transfer switch having a light that provides surface illumination of the transfer switch | — | 2013-03-12 |
| 8310818 | Transfer switch housing having a removable wall for segmenting the housing into a pair of compartments | — | 2012-11-13 |
| 8305738 | Transfer switch housing having a strain relief member | — | 2012-11-06 |
| RE43638 | Utility power restoration indicator for power management system | — | 2012-09-11 |
| D662896 | Power inlet box | — | 2012-07-03 |
| 8138433 | Sequenced separately-derived transfer switch capable of switching a load between a pair of power supplies without introducing open neutral switching transients | David D. Flegel, Michael O. Flegel | 2012-03-20 |
| 8115476 | Apparatus for providing energy usage and energy cost data for an electrical device | David D. Flegel, Jeffrey D. Flegel | 2012-02-14 |
| D648282 | Electric switch housing with cover | Benjamin F. Flegel | 2011-11-08 |