| 8421229 | Rectifier panel | Kim Hotstart | | |
| 8421231 | Relay (nvr) for electrical control systems | Kim Hotstart | | |
| 8422091 | Scr panel | Kim Hotstart | | |
| 8422170 | Scr panel | Kim Hotstart | | |
| 8422927 | Transfer switch assembly for electrical systems | Kim Hotstart | | |
| 8422928 | Motor module assembly for electrical systems | Kim Hotstart | | |
| 8423587 | Load regulator for electrical systems | Kim Hotstart | | |
| 8424310 | Relay for electrical control systems | Kim Hotstart | | |
| 8427842 | Time delay relay for electrical control systems | Kim Hotstart | | |
| 8428700 | Auxiliary relay for electrical control systems | Kim Hotstart | | |