Todd C Andres

US Patent:

7008310, Mar 7, 2006

Filed:

Aug 1, 2002

Appl. No.:

10/210789

Inventors:

Todd E. Andres - Evergreen CO, US

Assignee:

Entegris, Inc. - Chaska MN

International Classification:

B24B 19/00

US Classification:

451398, 451 63, 451262, 451269, 451402

Abstract:

A wafer carrier for use in polishing disks. The wafer carrier includes a main body and an integral visual inspection wear indicator. The main body has at least one opening formed therein adapted to receive a disk. The visual inspection wear indicator provides a visual indication of when the main body has reached the end of its useful life. The inspection wear indicator may have several portions to incrementally identify the approximate wear stage, that is, the approximate remaining useful life.

US Patent:

20050228498, Oct 13, 2005

Filed:

Nov 18, 2004

Appl. No.:

10/991956

Inventors:

Todd Andres - Evergreen CO, US

International Classification:

A61F002/44
A61F002/28

US Classification:

623017110, 623023510, 264445000

Abstract:

The spinal cage comprises a structural component having sufficient strength to withstand the compressive loading between vertebral bodies. The structural component is integrated with an osteoconductive component to facilitate bone growth between the vertebral bodies. The structural component may comprise any of PEEK, PEKK, or other structural material. The osteoconductive component may comprise any of allograft, natural bone, tricalcium phosphate, hydroxyapatite or a blend of calcium carbonate, calcium lactate and other calcium salts. A method for making the spinal cage involves molding polymers around an osteoconductive component, heat staking, and may further include ultrasonically welding, snap fit or mechanically assembling and/or adhesively bonding components.