DH

David R. Hennessy

HO Horton: 20 patents #1 of 70Top 2%
HC Horton Manufacturing Company: 2 patents #6 of 19Top 35%
DL Dana Limited: 1 patents #464 of 1,099Top 45%
Overall (All Time): #182,176 of 4,157,543Top 5%
23
Patents All Time

Issued Patents All Time

Showing 1–23 of 23 patents

Patent #TitleCo-InventorsDate
11795862 Transmission system with planetary gearing operable in forward and reverse modes Thomas Schmidt 2023-10-24
11459933 Accessible clutch attachment assembly and method Benjamin Larson, Mathew Stahl, Kristen Spurlock 2022-10-04
11441621 Pump and wiper assembly, associated viscous clutch and associated method 2022-09-13
11333207 Shaft output viscous clutch 2022-05-17
11260739 Energy harvesting clutch control assembly, valve assembly, and electrically actuated clutch Carter Brown, Gavin Dauwalter, Adam Gerenz, Patrick Swords, Gregory S. Mowry +4 more 2022-03-01
10941819 Viscous clutch and method of operation Derek Savela 2021-03-09
10612605 Viscous clutch fluid capture system Michael J. Stevens 2020-04-07
10612606 Viscous clutch and associated electromagnetic coil Derek Savela 2020-04-07
10578172 Viscous clutch fluid capture system Michael J. Stevens 2020-03-03
10557508 Modular viscous clutch 2020-02-11
10539157 Fan blade surface features Hugh K. Schilling, Kevin Cahill 2020-01-21
10082350 Heat exchanger blower system Stephen Anthony Stone, Michael J. Campbell, Jamil Marwan Orfali, Jacob Vincent VandeHei, Kevin Watson +2 more 2018-09-25
9568260 Heat exchanger blower method Stephen Anthony Stone, Michael J. Campbell, Jamil Marwan Orfali, Jacob Vincent VandeHei, Kevin Watson +2 more 2017-02-14
8887888 Integrated viscous clutch Thomas Schmidt, Scott C. Miller 2014-11-18
8100241 Viscous clutch with eddy current reduction Bastian Brand 2012-01-24
7946400 Viscous clutch Bastian Brand 2011-05-24
7938240 Viscous clutch Bastian Brand 2011-05-10
7854307 Electromagnetically actuated viscous clutch Bastian Brand 2010-12-21
5624016 Locking apparatus for a keyed connection Tonya L. Coulter 1997-04-29
5586635 Rotational control apparatus Chris A. Nelson, James LeClaire 1996-12-24
5405254 Rotary fluid displacement apparatus James LeClaire 1995-04-11
5242036 Torque and/or rotational control apparatus James LeClaire, James V. Radomski, Richard G. Christensen 1993-09-07
4941508 Force balanced hydraulic spool valve Dennis Wenker 1990-07-17