Issued Patents All Time
Showing 1–25 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8375950 | Flat-folded personal respiratory protection devices and processes for preparing same | Graham J. Bostock, John W. Bryant, Desmond T. Curran, Christopher P. Henderson, Dennis L. Krueger | 2013-02-19 |
| 8146594 | Flat-folded personal respiratory protection devices | Graham J. Bostock, John W. Bryant, Desmond T. Curran, Christopher P. Henderson, Dennis L. Krueger | 2012-04-03 |
| 7131442 | Fibrous filtration face mask | Joseph P. Kronzer | 2006-11-07 |
| 7069930 | Flat-folded personal respiratory protection devices and processes for preparing same | Graham J. Bostock, John W. Bryant, Desmond T. Curran, Christopher P. Henderson, Dennis L. Krueger | 2006-07-04 |
| 6886563 | Flat-folded personal respiratory protection devices and processes for preparing same | Graham J. Bostock, John W. Bryant, Desmond T. Curran, Christopher P. Henderson, Dennis L. Krueger | 2005-05-03 |
| 6722366 | Method of making a flat-folded personal respiratory protection device | Graham J. Bostock, John W. Bryant, Desmond T. Curran, Christopher P. Henderson, Dennis L. Krueger | 2004-04-20 |
| 6715489 | Processes for preparing flat-folded personal respiratory protection devices | Graham J. Bostock, John W. Bryant, Desmond T. Curran, Christopher P. Henderson, Dennis L. Krueger | 2004-04-06 |
| 6568392 | Flat-folded personal respiratory protection devices and processes for preparing same | Graham J. Bostock, John W. Bryant, Desmond T. Curran, Christopher P. Henderson, Dennis L. Krueger | 2003-05-27 |
| 6536434 | Flat-folded personal respiratory protection devices and processes for preparing same | Graham J. Bostock, John W. Bryant, Desmond T. Curran, Christopher P. Henderson, Dennis L. Krueger | 2003-03-25 |
| 6492286 | Uniform meltblown fibrous web | Michael R. Berrigan, Stanley C. Erickson, Luther E. Erickson | 2002-12-10 |
| 6484722 | Flat-folded personal respiratory protection devices and processes for preparing same | Graham J. Bostock, John W. Bryant, Desmond T. Curran, Christopher P. Henderson, Dennis L. Krueger | 2002-11-26 |
| 6148817 | Multi-part headband and respirator mask assembly and process for making same | John W. Bryant, Desmond T. Curran, Christopher P. Henderson, Harold J. Seppala, Elfed I. Williams | 2000-11-21 |
| 6139308 | Uniform meltblown fibrous web and methods and apparatus for manufacturing | Michael R. Berrigan, Stanley C. Erickson, Luther E. Erickson | 2000-10-31 |
| D431647 | Personal respiratory protection device having an exhalation valve | Christopher P. Henderson, John W. Bryant, Desmond T. Curran | 2000-10-03 |
| 6123077 | Flat-folded personal respiratory protection devices and processes for preparing same | Graham J. Bostock, John W. Bryant, Desmond T. Curran, Christopher P. Henderson, Dennis L. Krueger | 2000-09-26 |
| 6095143 | Face mask having a combination adjustable ear loop and drop down band | Cynthia Y. Tamaki, Isao Kuniya | 2000-08-01 |
| 6070579 | Elastomeric composite headband | John W. Bryant, Desmond T. Curran, Christopher P. Henderson, Dennis L. Krueger, Harold J. Seppala +1 more | 2000-06-06 |
| D424688 | Respiratory protection mask | John W. Bryant, Christopher P. Henderson, Desmond T. Curran | 2000-05-09 |
| 6057256 | Web of biocomponent blown fibers | Dennis L. Krueger | 2000-05-02 |
| 6041782 | Respiratory mask having comfortable inner cover web | Seyed A. Angadjivand, Tammy M. Chalmers, Simon A. Mortimer, Scott J. Tuman, Cynthia Y. Tamaki +1 more | 2000-03-28 |
| 5819731 | Face mask having a combination adjustable ear loop and drop down band | Cynthia Y. Tamaki, Isao Kuniya | 1998-10-13 |
| 5724677 | Multi-part headband and respirator mask assembly and process for making same | John W. Bryant, Desmond T. Curran, Christopher P. Henderson, Harold J. Seppala, Elfed I. Williams | 1998-03-10 |
| 5609164 | Method of forming an earplug containment device | Gerald V. Elstran, Paul E. Olson | 1997-03-11 |
| 5503782 | Method of making sorbent articles | Thomas I. Insley, Daniel E. Meyer, Cynthia Y. Tamaki, Donald E. Young | 1996-04-02 |
| 5307796 | Methods of forming fibrous filtration face masks | Joseph P. Kronzer, Roger J. Stumo, Harvey J. Berg | 1994-05-03 |