Mitchener Keffer; Ruth E.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Mitchener Keffer; Ruth E..The latest application filed is for "tool bits with floating magnet sleeves".
- Mitchener Keffer; Ruth E. - Lutherille MD
- Mitchener Keffer; Ruth E. - Baltimore MD
- Mitchener-Keffer; Ruth E. - Lutherville MD
| Patent | Date |
|---|---|
| Tool bits with floating magnet sleeves Grant 10,556,329 - Peters , et al. Feb | 2020-02-11 |
| Fastening tools with floating magnet sleeves Grant 10,150,205 - Santamarina , et al. Dec | 2018-12-11 |
| Fastener tool assemblies Grant 10,040,179 - Peters , et al. August 7, 2 | 2018-08-07 |
| Tool bits with floating magnet sleeves Grant 9,943,946 - Peters , et al. April 17, 2 | 2018-04-17 |
| Tool Bits With Floating Magnet Sleeves App 20180071899 - PETERS; Michael P. ; et al. | 2018-03-15 |
| Fastening Tools With Floating Magnet Sleeves App 20170036329 - SANTAMARINA; Aland ; et al. | 2017-02-09 |
| Quick change bit holder with ring magnet Grant 9,227,309 - Moss , et al. January 5, 2 | 2016-01-05 |
| Fastener Tool Assemblies App 20150367486 - PETERS; Michael P. ; et al. | 2015-12-24 |
| Quick change bit holder with ring magnet Grant 9,156,147 - Peters , et al. October 13, 2 | 2015-10-13 |
| Quick Change Bit Holder With Ring Magnet App 20130328276 - MOSS; Darren B. ; et al. | 2013-12-12 |
| Quick Change Bit Holder With Ring Magnet App 20130220086 - PETERS; Michael P. ; et al. | 2013-08-29 |
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