Bierer; Walter S.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Bierer; Walter S..The latest application filed is for "voltage detector with improved accuracy".
- Bierer; Walter S. - Ridgeway SC
- Bierer; Walter S. - Blythewood SC
- Bierer; Walter S - Blythewood SC
| Patent | Date |
|---|---|
| Long range phasing voltmeter with transmission and grid phasing Grant 10,997,852 - Bierer May 4, 2 | 2021-05-04 |
| Long range phasing voltmeter with robust phase transmission Grant 10,459,022 - Bierer Oc | 2019-10-29 |
| Phase identification on a grounded electrical power system Grant 9,927,474 - Bierer , et al. March 27, 2 | 2018-03-27 |
| Long range phasing voltmeter Grant 8,970,204 - Bierer March 3, 2 | 2015-03-03 |
| Electrical power transfer indicator system and method Grant 8,760,150 - Bierer June 24, 2 | 2014-06-24 |
| Long range phasing voltmeter Grant 8,283,911 - Bierer October 9, 2 | 2012-10-09 |
| Long range phasing beacon Grant 8,283,910 - Bierer October 9, 2 | 2012-10-09 |
| Long range phasing voltmeter Grant 7,808,228 - Bierer October 5, 2 | 2010-10-05 |
| Voltage detector Grant 7,336,063 - Bierer February 26, 2 | 2008-02-26 |
| Long range alternating current phasing voltmeter Grant 7,109,699 - Bierer September 19, 2 | 2006-09-19 |
| Voltage detector with improved accuracy Grant 6,753,678 - Bierer June 22, 2 | 2004-06-22 |
| Wireless alternating current phasing voltmeter multimeter Grant 6,734,658 - Bierer May 11, 2 | 2004-05-11 |
| Wireless alternating current phasing voltmeter Grant 6,617,840 - Bierer September 9, 2 | 2003-09-09 |
| Voltage detector with improved accuracy App 20030067295 - Bierer, Walter S. | 2003-04-10 |
| AC phasing voltmeter Grant 6,459,252 - Bierer October 1, 2 | 2002-10-01 |
| Wireless alternating current phasing voltmeter App 20020135353 - Bierer, Walter S. | 2002-09-26 |
| AC phasing voltmeter App 20020093326 - Bierer, Walter S. | 2002-07-18 |
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