DH

David E. Havens

SA Spirit Aerosystems: 8 patents #7 of 183Top 4%
CG Cornerstone Research Group: 6 patents #8 of 69Top 15%
ST Spin Tech: 2 patents #9 of 25Top 40%
📍 Centerville, OH: #44 of 668 inventorsTop 7%
🗺 Ohio: #4,140 of 73,341 inventorsTop 6%
Overall (All Time): #272,699 of 4,157,543Top 7%
17
Patents All Time

Issued Patents All Time

Showing 1–17 of 17 patents

Patent #TitleCo-InventorsDate
10999052 Cauls and methods of using cauls to produce composite articles Thomas Wood Margraf, Matthew C. Everhart, Robert V. Graziano, Craig S. Jennings 2021-05-04
10391684 Cauls and methods of using cauls to produce composite articles Thomas Wood Margraf, Matthew C. Everhart, Robert V. Graziano, Craig S. Jennings 2019-08-27
9180632 Composite self-healing system Christopher Douglas Hemmelgarn, Thomas Wood Margraf, John Lewis Reed, Logan Wayne Snyder, Anthony Louderbough +1 more 2015-11-10
9073240 Reconfigurable shape memory polymer tooling supports Scott Robert Huelskamp, Joel J. Everhart, Steven F. Hanson, Jeffrey W. Priest, Carl Ray Fiegenbaum +1 more 2015-07-07
8974217 Reconfigurable shape memory polymer tooling supports Joel J. Everhart, Bryan Michael Pelley, Steven F. Hanson, Jeffrey W. Priest, Carl Ray Fiegenbaum 2015-03-10
8951375 Methods and systems for co-bonding or co-curing composite parts using a rigid/malleable SMP apparatus Matthew C. Everhart, Randy Rex Kysar, Carl Ray Fiegenbaum, Jeffrey W. Priest, Delbert Leon Strelow +2 more 2015-02-10
8945455 Reconfigurable shape memory polymer support tooling Joel J. Everhart, Thomas Wood Margraf 2015-02-03
8945325 Methods and systems for forming integral composite parts with a SMP apparatus Matthew C. Everhart, Randy Rex Kysar, Carl Ray Fiegenbaum, Jeffrey W. Priest, Delbert Leon Strelow +1 more 2015-02-03
8877114 Method for removing a SMP apparatus from a cured composite part Matthew C. Everhart, Kristin M. Cable, Eric W. Traxler, Carl Ray Fiegenbaum, Jeffrey W. Priest +1 more 2014-11-04
8815145 Methods and systems for fabricating composite stiffeners with a rigid/malleable SMP apparatus Matthew C. Everhart, Joel J. Everhart, Randy Rex Kysar, Carl Ray Fiegenbaum, Jeffrey W. Priest +2 more 2014-08-26
8734703 Methods and systems for fabricating composite parts using a SMP apparatus as a rigid lay-up tool and bladder Matthew C. Everhart, Thomas Wood Margraf, Joel J. Everhart, Randy Rex Kysar, Carl Ray Fiegenbaum +3 more 2014-05-27
8668110 Venting mechanisms for containers Eric W. Traxler, Jamie B. Vanderhorst, Brandon Charles Kirby, Michael J. Fisher, Joel J. Everhart +1 more 2014-03-11
8608890 Reconfigurable shape memory polymer tooling supports Joel J. Everhart, Steven F. Hanson, Jeffrey W. Priest, Carl Ray Fiegenbaum, Thomas J. Barnell 2013-12-17
8356727 Venting mechanisms for containers Eric W. Traxler, Jaime B. Vanderhorst, Brandon Charles Kirby, Michael J. Fisher, Joel J. Everhart +2 more 2013-01-22
8033237 Environmental condition cumulative tracking integration sensor using shape memory polymer Patrick J. Hood, Teresa Ellen Havens, Joel J. Everhart, Aaron Schneider 2011-10-11
7422714 Method of using a shape memory material as a mandrel for composite part manufacturing Patrick J. Hood, Matthew C. Everhart 2008-09-09
6986855 Structural and optical applications for shape memory polymers (SMP) Patrick J. Hood 2006-01-17