Stafford; Donald C.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Stafford; Donald C..The latest application filed is for "perpendicular magnetic recording medium with epitaxial exchange coupling layer".

Company Profile

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Stafford; Donald C. - San Jose CA
Stafford; Donald C. - Hinsdale IL

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Perpendicular magnetic recording medium with epitaxial exchange coupling layer Grant 9,401,170 - Sun , et al. July 26, 2	2016-07-26
Magnetic recording media with small grain size and narrow c-axis dispersion by using dual seed layer with substrate bias Grant 8,956,741 - Li , et al. February 17, 2	2015-02-17
Shell and tube heat exchanger with welds joining the tubes to tube sheet Grant 4,579,171 - Stafford , et al. April 1, 1	1986-04-01
Shell and tube vertical heat exchanger with sleeves around the tubes Grant 4,570,702 - Stafford , et al. February 18, 1	1986-02-18
Shell and tube falling film heat exchanger with tubes in concentric rings and liquid distribution box Grant 4,567,942 - Stafford , et al. February 4, 1	1986-02-04
Falling film heat exchanger with member to distribute liquid on external surfaces of tubes Grant 4,519,448 - Allo , et al. May 28, 1	1985-05-28
Vertical shell and tube heat exchanger with sleeves around upper part of tubes Grant 4,442,679 - Stafford , et al. April 17, 1	1984-04-17
Shell and tube heat exchanger with removable tubes and tube sheets Grant 4,421,160 - Stafford , et al. December 20, 1	1983-12-20
Spindle moored ship Grant 4,305,341 - Stafford December 15, 1	1981-12-15
Piggable fluid swivel Grant 4,183,559 - Stafford , et al. January 15, 1	1980-01-15

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