DH

Donald E. Hoffman

Ford: 30 patents #511 of 17,473Top 3%
General Motors: 9 patents #1,725 of 18,328Top 10%
EA E.I. Du Pont De Nemours And: 2 patents #2,942 of 8,010Top 40%
University of California: 1 patents #8,022 of 18,278Top 45%
Overall (All Time): #63,215 of 4,157,543Top 2%
46
Patents All Time

Issued Patents All Time

Showing 25 most recent of 46 patents

Patent #TitleCo-InventorsDate
10344830 Multi-speed transmission 2019-07-09
10309506 Multiple-mode continuously variable transmission David A. Janson 2019-06-04
10247280 Four planetary-gearset step-ratio automatic transmission Gregory Daniel Goleski 2019-04-02
10145453 Multi-speed transmission Robert Scott Lippert, David A. Janson, Reid Alan Baldwin 2018-12-04
9822856 Multi-speed transmission 2017-11-21
9638291 Multi-speed transmission David A. Janson 2017-05-02
9625019 Infinitely variable transmission David A. Janson 2017-04-18
9423005 Multi-speed transmission Gregory Daniel Goleski 2016-08-23
9217494 Multi-speed transmission 2015-12-22
9175748 Multi-speed transmission Gregory Daniel Goleski, Robert Scott Lippert 2015-11-03
9109669 Multi-speed transmission David A. Janson 2015-08-18
9103414 Six shift-element step-ratio automatic transmission Gregory Daniel Goleski 2015-08-11
8986155 Multi-speed transmission 2015-03-24
8961357 Multi-speed automatic transmission 2015-02-24
8784258 Planetary power transmission David A. Janson 2014-07-22
8647233 Accessory drive and engine restarting David A. Janson 2014-02-11
8591377 Multi-speed automatic transmission Reid Alan Baldwin 2013-11-26
8574110 Transmission producing stepless variable speed ratios 2013-11-05
8475316 Accessory drive and engine restarting system David A. Janson 2013-07-02
8382631 Accessory drive and engine restarting system David A. Janson 2013-02-26
8376889 Transmission producing continuously variable speed ratios David A. Janson 2013-02-19
8257216 Infinitely variable transmission 2012-09-04
8257217 Infinitely variable transmission with offset output shaft 2012-09-04
8016714 Multiple speed transmission utilizing co-planar gear sets Steven G. Thomas 2011-09-13
7766785 Multiple speed automatic transmission Steve G. Thomas, Gregory Daniel Goleski 2010-08-03