Knauer; Richard
Patent Applications and Registrations
Patent applications and USPTO patent grants for Knauer; Richard.The latest application filed is for "tube-formed earplug with integral stem".
- Knauer; Richard - Carmel IN
- Knauer; Richard - Indianapolis IN
| Patent | Date |
|---|---|
| Tube-formed earplug with integral stem Grant 7,886,744 - Knauer February 15, 2 | 2011-02-15 |
| Mold for forming a hearing protective device Grant 7,731,487 - Knauer , et al. June 8, 2 | 2010-06-08 |
| Hearing protective device and method of making the same Grant 7,727,433 - Knauer , et al. June 1, 2 | 2010-06-01 |
| High sound attenuating hearing protection device Grant 7,464,786 - Falco , et al. December 16, 2 | 2008-12-16 |
| Tube-formed earplug with integral stem App 20070089755 - Knauer; Richard | 2007-04-26 |
| Hearing protection device Grant D528,204 - Doty , et al. September 12, 2 | 2006-09-12 |
| Hearing protection device Grant D524,937 - Doty , et al. July 11, 2 | 2006-07-11 |
| Hearing protective device and method of making the same App 20060141083 - Knauer; Richard ; et al. | 2006-06-29 |
| Hearing protective device and method of making the same App 20060138691 - Knauer; Richard ; et al. | 2006-06-29 |
| High sound attenuating hearing protection device App 20050274568 - Falco, Robert N. ; et al. | 2005-12-15 |
| Stemmed earplug Grant D496,722 - Falco , et al. September 28, 2 | 2004-09-28 |
| Earplug Grant D492,768 - Knauer , et al. July 6, 2 | 2004-07-06 |
| Earplug Grant D492,767 - Knauer , et al. July 6, 2 | 2004-07-06 |
| Earplug Grant D481,118 - Doty , et al. October 21, 2 | 2003-10-21 |
| Hearing protective device and method of making same App 20020124851 - Knauer, Richard ; et al. | 2002-09-12 |
| Glow-in-the-dark hearing protective devices Grant 6,095,146 - Knauer , et al. August 1, 2 | 2000-08-01 |
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