Birkner; Charles Christian
Patent Applications and Registrations
Patent applications and USPTO patent grants for Birkner; Charles Christian.The latest application filed is for "roof-line safety system".
- Birkner; Charles Christian - Magnolia TX
| Patent | Date |
|---|---|
| Roof-line Safety System App 20220106799 - Birkner; Charles Christian ; et al. | 2022-04-07 |
| Electronic requirement management system with checklists on a handheld computer App 20070005412 - Martinez; David Frederick ; et al. | 2007-01-04 |
| Integrated construction project management system with handheld computer and checklist App 20060015475 - Birkner; Charles Christian ; et al. | 2006-01-19 |
| Computerized laboratory information management system Grant 6,826,498 - Birkner , et al. November 30, 2 | 2004-11-30 |
| Integrated quality assurance control system to manage construction projects App 20020198755 - Birkner, Charles Christian ; et al. | 2002-12-26 |
| Computerized laboratory information management system App 20020138220 - Birkner, Charles Christian ; et al. | 2002-09-26 |
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