JH

John R. B. Hall

DC Donaldson Company: 18 patents #66 of 695Top 10%
📍 Burnsville, MN: #33 of 632 inventorsTop 6%
🗺 Minnesota: #4,012 of 52,454 inventorsTop 8%
Overall (All Time): #253,579 of 4,157,543Top 7%
18
Patents All Time

Issued Patents All Time

Showing 1–18 of 18 patents

Patent #TitleCo-InventorsDate
10967315 Fine fiber media layer Hoo Y. Chung, Mark A. Gogins, Douglas G. Crofoot, Thomas M. Weik 2021-04-06
10272374 Fine fiber media layer Hoo Y. Chung, Mark A. Gogins, Douglas G. Crofoot, Thomas M. Weik 2019-04-30
9718012 Fine fiber media layer Hoo Y. Chung, Mark A. Gogins, Douglas G. Crofoot, Thomas M. Weik 2017-08-01
8709118 Fine fiber media layer Hoo Y. Chung, Mark A. Gogins, Douglas G. Crofoot, Thomas M. Weik 2014-04-29
8512431 Fine fiber media layer Hoo Y. Chung, Mark A. Gogins, Douglas G. Crofoot, Thomas M. Weik 2013-08-20
8366797 Fine fiber media layer Hoo Y. Chung, Mark A. Gogins, Douglas G. Crofoot, Thomas M. Weik 2013-02-05
8118901 Fine fiber media layer Hoo Y. Chung, Mark A. Gogins, Douglas G. Crofoot, Thomas M. Weik 2012-02-21
8029588 Fine fiber media layer Hoo Y. Chung, Mark A. Gogins, Douglas G. Crofoot, Thomas M. Weik 2011-10-04
7318852 Bag house filter with fine fiber and spun bonded media Hoo Y. Chung, Mark A. Gogins, Douglas G. Crofoot, Thomas M. Weik 2008-01-15
7318853 Polymer, polymer microfiber, polymer nanofiber and applications including filter structures Hoo Y. Chung, Mark A. Gogins, Douglas G. Crofoot, Thomas M. Weik 2008-01-15
7316723 Air filter with fine fiber and spun bonded media Hoo Y. Chung, Mark A. Gogins, Douglas G. Crofoot, Thomas M. Weik 2008-01-08
7270693 Polymer, polymer microfiber, polymer nanofiber and applications including filter structures Hoo Y. Chung, Mark A. Gogins, Douglas G. Crofoot, Thomas M. Weik 2007-09-18
7179317 Polymer, polymer microfiber, polymer nanofiber and applications including filter structures Hoo Y. Chung, Mark A. Gogins, Douglas G. Crofoot, Thomas M. Weik 2007-02-20
7090715 Polymer, polymer microfiber, polymer nanofiber and applications including filter structures Hoo Y. Chung, Mark A. Gogins, Douglas G. Crofoot, Thomas M. Weik 2006-08-15
7070640 Polymer, polymer microfiber, polymer nanofiber and applications including filter structures Hoo Y. Chung, Mark A. Gogins, Douglas G. Crofoot, Thomas M. Weik 2006-07-04
6955775 Process if making fine fiber material Hoo Y. Chung, Mark A. Gogins, Douglas G. Crofoot, Thomas M. Weik 2005-10-18
6924028 Polymer, polymer microfiber, polymer nanofiber and applications including filter structures Hoo Y. Chung, Mark A. Gogins, Douglas G. Crofoot, Thomas M. Weik 2005-08-02
6743273 Polymer, polymer microfiber, polymer nanofiber and applications including filter structures Hoo Y. Chung, Mark A. Gogins, Douglas G. Crofoot, Thomas M. Weik 2004-06-01