Demko; Andrew
Patent Applications and Registrations
Patent applications and USPTO patent grants for Demko; Andrew.The latest application filed is for "knife with interchangeable blade".
- Demko; Andrew - Wampum PA
- Demko; Andrew - New Castle PA
| Patent | Date |
|---|---|
| Knife with interchangeable blade Grant 11,305,440 - Demko April 19, 2 | 2022-04-19 |
| Knife With Interchangeable Blade App 20210197411 - Demko; Andrew | 2021-07-01 |
| Axe Head Attachment App 20210197359 - Demko; Andrew | 2021-07-01 |
| Locking device for a folding knife Grant 11,020,863 - Demko June 1, 2 | 2021-06-01 |
| Polymer Balisong Knife and Latch for a Balisong Knife App 20210154867 - Demko; Andrew | 2021-05-27 |
| Folding knife with blade lock Grant 10,870,209 - Demko , et al. December 22, 2 | 2020-12-22 |
| Folding Knife App 20200230830 - Demko; Andrew ; et al. | 2020-07-23 |
| Folding Knife App 20200230831 - Demko; Andrew ; et al. | 2020-07-23 |
| Arm blade engagement lock for folding knife Grant 10,632,632 - Demko | 2020-04-28 |
| Folding knife blade with engagement ring Grant D816,457 - Demko May 1, 2 | 2018-05-01 |
| Dual arm blade engagement lock for folding knife Grant 9,950,433 - Demko April 24, 2 | 2018-04-24 |
| Dual Arm Blade Engagement Lock For Folding Knife App 20160279810 - Demko; Andrew | 2016-09-29 |
| Spring Assist Folding Knife App 20150266188 - Demko; Andrew | 2015-09-24 |
| Dual handle safety folding knife Grant RE43,908 - Demko January 8, 2 | 2013-01-08 |
| Implement scabbard Grant 8,196,788 - Demko , et al. June 12, 2 | 2012-06-12 |
| Stun projectile for a blow gun Grant 8,123,637 - Demko , et al. February 28, 2 | 2012-02-28 |
| Multiple dart blow gun projectile holder Grant 8,096,292 - Demko , et al. January 17, 2 | 2012-01-17 |
| Folding knife lock Grant 7,941,927 - Demko May 17, 2 | 2011-05-17 |
| Dual handle safety folding knife Grant 7,676,930 - Demko March 16, 2 | 2010-03-16 |
| Locking device for a folding knife Grant 7,469,476 - Demko December 30, 2 | 2008-12-30 |
| Locking device for a folding knife App 20080040931 - Demko; Andrew | 2008-02-21 |
| Self opening folding knife Grant 7,036,229 - Demko May 2, 2 | 2006-05-02 |
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