Callahan; Michael D.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Callahan; Michael D..The latest application filed is for "portable liquid analyzer".
- Callahan; Michael D. - Glenwood Springs CO US
- Callahan; Michael D. - Englewood CO
- Callahan; Michael D. - Sparks NV
- Callahan; Michael D - Marathon FL
| Patent | Date |
|---|---|
| Portable liquid analyzer Grant 10,942,126 - Callahan , et al. March 9, 2 | 2021-03-09 |
| Portable Liquid Analyzer App 20200371038 - Callahan; Michael D. ; et al. | 2020-11-26 |
| Portable Liquid Analyzer App 20190353597 - Callahan; Michael D. ; et al. | 2019-11-21 |
| Mass produced, low cost, portable test kit for the detection and identification of chemical and biological agents Grant 10,330,603 - Callahan | 2019-06-25 |
| Mass produced, low cost, portable test kit for the detection and identification of narcotics Grant 9,759,733 - Callahan September 12, 2 | 2017-09-12 |
| Gaming device display with simulated halftones Grant 6,976,915 - Baker , et al. December 20, 2 | 2005-12-20 |
| Gaming device display with simulated halftones App 20040021705 - Baker, Curtis L. ; et al. | 2004-02-05 |
| Retracting rotational backpack blower air discharge tube unit Grant 6,125,503 - Callahan October 3, 2 | 2000-10-03 |
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