Butler; Brian Frederic
Patent Applications and Registrations
Patent applications and USPTO patent grants for Butler; Brian Frederic.The latest application filed is for "multiple movable barrier operator system and method".
- Butler; Brian Frederic - Chicago IL
| Patent | Date |
|---|---|
| Multiple movable barrier operator system and method Grant 8,111,997 - Butler February 7, 2 | 2012-02-07 |
| Multiple Movable Barrier Operator System And Method App 20090324235 - Butler; Brian Frederic | 2009-12-31 |
| Barrier movement operator battery backup and power equipment battery charging center Grant 7,635,966 - Butler December 22, 2 | 2009-12-22 |
| Barrier movement operator battery backup and power equipment battery charging center App 20080007210 - Butler; Brian Frederic | 2008-01-10 |
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