Richard Freeland Gordon
Engineers at Danbury Rd, Ridgefield, CT

6509094, Jan 21, 2003

Nov 8, 2000

09/709029

Tilak M. Shah - Cary NC 27511
Richard E. Gordon - Ridgefield CT 06877

D02G 300

428395, 428364, 428375, 428378, 528335, 528353, 4273722, 427384, 4273855, 4273881, 4273882, 4273935

Disclosed is a polyimide coated shape memory material suitable for thermomechanical treatment to shape-set the material into the desired configuration and activate shape memory properties. The polyimide coating is subjected to a curing regime that imparts higher heat resistance in the polyimide coating to withstand the elevated temperatures required during the shape-setting treatment.

2011024, Oct 13, 2011

Jun 22, 2011

13/165928

Richard F. Gordon - Ridgefield CT, US

C21D 8/00, C21D 6/00, C22C 45/02

148561

This disclosure relates to shape memory alloys which have been subjected to a thermal and mechanical treatment to increase the austenite start temperature A→A′ such that the shape memory alloy is martensitic at body temperature and when subsequently subjected to a controlled deformation, the shape memory alloy preferentially reverts to the parent phase. One application for this disclosure is a stent for use in a lumen in a human or animal body having a generally tubular body formed from a shape memory alloy which has been subjected to a thermal and mechanical treatment so it deforms as martensite until a critical expansion diameter is reached at which point the tubular body rapidly reverts to the parent phase with much higher mechanical properties. The shape memory alloy comprises Ni—Ti and a ternary element ranging from about 3 at. % to about 20 at. %. The ternary element is effectively insoluble in a Ni—Ti matrix. In a preferred embodiment, the element is selected from the group consisting of niobium, tantalum and zirconium.

7988722, Aug 2, 2011

Mar 24, 2006

11/909681

Richard F. Gordon - Ridgefield CT, US

A61F 2/06

623 118, 623 119, 623 115

This invention relates to medical devices comprising shape memory alloys which have been subjected to a thermal and mechanical treatment to increase the austenite start temperature Ato A′ such that the shape memory alloy is martensitic at body temperature and when subsequently subjected to a controlled deformation, the shape memory alloy preferentially reverts to the parent phase. The shape memory alloy comprises nickel, titanium and a ternary element, preferably 3 at. % to about 20 at. %. The ternary element is insoluble in a Ni—Ti matrix. In a preferred embodiment, the element is selected from the group consisting of niobium, tantalum and zirconium.