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Fibrous filtration face mask having a new unidirectional fluid valve |
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2009-02-24 |
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Fibrous filtration face mask having a new unidirectional fluid valve |
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Method of making a filtering face mask that has an exhalation valve |
Daniel A. Japuntich, Vaughn B. Grannis, Anthony B. Ferguson |
2007-12-25 |
| 7117868 |
Fibrous filtration face mask having a new unidirectional fluid valve |
Daniel A. Japuntich, Vaughn B. Grannis, Anthony B. Ferguson |
2006-10-10 |
| 6854463 |
Filtering face mask that has a new exhalation valve |
Daniel A. Japuntich, Vaughn B. Grannis, Anthony B. Ferguson |
2005-02-15 |
| 6843248 |
Filtering face mask that has a new exhalation valve |
Daniel A. Japuntich, Vaughn B. Grannis, Anthony B. Ferguson |
2005-01-18 |
| 6148817 |
Multi-part headband and respirator mask assembly and process for making same |
John W. Bryant, Desmond T. Curran, James F. Dyrud, Christopher P. Henderson, Elfed I. Williams |
2000-11-21 |
| 6070579 |
Elastomeric composite headband |
John W. Bryant, Desmond T. Curran, James F. Dyrud, Christopher P. Henderson, Dennis L. Krueger +1 more |
2000-06-06 |
| 5724677 |
Multi-part headband and respirator mask assembly and process for making same |
John W. Bryant, Desmond T. Curran, James F. Dyrud, Christopher P. Henderson, Elfed I. Williams |
1998-03-10 |
| 5509436 |
Unidirectional fluid valve |
Daniel A. Japuntich, Vaughn B. Grannis, Anthony B. Ferguson |
1996-04-23 |
| 5352513 |
Oil, water and sweat repellent microporous membrane materials |
James S. Mrozinski |
1994-10-04 |
| 5325892 |
Unidirectional fluid valve |
Daniel A. Japuntich, Vaughn B. Grannis, Anthony B. Ferguson |
1994-07-05 |
| 5260360 |
Oil, water and sweat repellent microporous membrane materials |
James S. Mrozinski |
1993-11-09 |
| 5256466 |
Article for liquid containment and recovery |
Michael R. Berringan |
1993-10-26 |
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Respirator harness assembly |
Alex Anthony Wawiluk |
1993-08-24 |
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Adherent protective collars |
Alex Anthony Wawiluk, Arthur L. Fry |
1991-01-01 |
