Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10967315 | Fine fiber media layer | Hoo Y. Chung, John R. B. Hall, Mark A. Gogins, Thomas M. Weik | 2021-04-06 |
| 10272374 | Fine fiber media layer | Hoo Y. Chung, John R. B. Hall, Mark A. Gogins, Thomas M. Weik | 2019-04-30 |
| 9718012 | Fine fiber media layer | Hoo Y. Chung, John R. B. Hall, Mark A. Gogins, Thomas M. Weik | 2017-08-01 |
| 8709118 | Fine fiber media layer | Hoo Y. Chung, John R. B. Hall, Mark A. Gogins, Thomas M. Weik | 2014-04-29 |
| 8512431 | Fine fiber media layer | Hoo Y. Chung, John R. B. Hall, Mark A. Gogins, Thomas M. Weik | 2013-08-20 |
| 8366797 | Fine fiber media layer | Hoo Y. Chung, John R. B. Hall, Mark A. Gogins, Thomas M. Weik | 2013-02-05 |
| 8177876 | Reduced solidity web comprising fiber and fiber spacer or separation means | Veli E. Kalayci, Timothy H. Grafe, Kristine M. Graham | 2012-05-15 |
| 8118901 | Fine fiber media layer | Hoo Y. Chung, John R. B. Hall, Mark A. Gogins, Thomas M. Weik | 2012-02-21 |
| 8029588 | Fine fiber media layer | Hoo Y. Chung, John R. B. Hall, Mark A. Gogins, Thomas M. Weik | 2011-10-04 |
| 7918913 | Reduced solidity web comprising fiber and fiber spacer or separation means | Veli E. Kalayci, Timothy H. Grafe, Kristine M. Graham | 2011-04-05 |
| 7717975 | Reduced solidity web comprising fiber and fiber spacer or separation means | Veli E. Kalayci, Timothy H. Grafe, Kristine M. Graham | 2010-05-18 |
| 7318852 | Bag house filter with fine fiber and spun bonded media | Hoo Y. Chung, John R. B. Hall, Mark A. Gogins, Thomas M. Weik | 2008-01-15 |
| 7318853 | Polymer, polymer microfiber, polymer nanofiber and applications including filter structures | Hoo Y. Chung, John R. B. Hall, Mark A. Gogins, Thomas M. Weik | 2008-01-15 |
| 7316723 | Air filter with fine fiber and spun bonded media | Hoo Y. Chung, John R. B. Hall, Mark A. Gogins, Thomas M. Weik | 2008-01-08 |
| 7270693 | Polymer, polymer microfiber, polymer nanofiber and applications including filter structures | Hoo Y. Chung, John R. B. Hall, Mark A. Gogins, Thomas M. Weik | 2007-09-18 |
| 7179317 | Polymer, polymer microfiber, polymer nanofiber and applications including filter structures | Hoo Y. Chung, John R. B. Hall, Mark A. Gogins, Thomas M. Weik | 2007-02-20 |
| 7090715 | Polymer, polymer microfiber, polymer nanofiber and applications including filter structures | Hoo Y. Chung, John R. B. Hall, Mark A. Gogins, Thomas M. Weik | 2006-08-15 |
| 7070640 | Polymer, polymer microfiber, polymer nanofiber and applications including filter structures | Hoo Y. Chung, John R. B. Hall, Mark A. Gogins, Thomas M. Weik | 2006-07-04 |
| 6955775 | Process if making fine fiber material | Hoo Y. Chung, John R. B. Hall, Mark A. Gogins, Thomas M. Weik | 2005-10-18 |
| 6924028 | Polymer, polymer microfiber, polymer nanofiber and applications including filter structures | Hoo Y. Chung, John R. B. Hall, Mark A. Gogins, Thomas M. Weik | 2005-08-02 |
| 6746517 | Filter structure with two or more layers of fine fiber having extended useful service life | James Benson, Mark A. Gogins, Thomas M. Weik | 2004-06-08 |
| 6743273 | Polymer, polymer microfiber, polymer nanofiber and applications including filter structures | Hoo Y. Chung, John R. B. Hall, Mark A. Gogins, Thomas M. Weik | 2004-06-01 |
| 5066400 | Self-spaced pleated filter | Gary J. Rocklitz, Richard L. Zelinka | 1991-11-19 |