Rick Allan Sprague

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San Jose, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Chemical strengthening process for disks used in disk drive data st...
- Patent number 7,197,897
- Issue date Apr 3, 2007
- Hitachi Global Storage Technologies Netherlands B.V.
- Nathan Ellis Jacobson
- G11 - INFORMATION STORAGE
Information Patent Grant
pH adjustment of a melt for use in microetching glass substrates
- Patent number 6,911,261
- Issue date Jun 28, 2005
- International Business Machines Corporation
- Terry Lee Jensen
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
pH adjustment of a strengthening melt for use in strengthening glas...
- Patent number 6,638,623
- Issue date Oct 28, 2003
- International Business Machines Corporation
- Terry Lee Jensen
- C03 - GLASS MINERAL OR SLAG WOOL

Patents Applicationslast 30 patents

Information Patent Application
PH adjustment of a melt for use in microetching glass substrates
- Publication number 20030230552
- Publication date Dec 18, 2003
- International Business Machines Corporation
- Terry Lee Jensen
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Application
Chemical strengthening process for disks used in disk drive data st...
- Publication number 20030188552
- Publication date Oct 9, 2003
- International Business Machines Corporation
- Nathan Ellis Jacobson
- G11 - INFORMATION STORAGE
Information Patent Application
PH adjustment of a strengthening melt for use in strengthening glas...
- Publication number 20030110802
- Publication date Jun 19, 2003
- Terry Lee Jensen
- C03 - GLASS MINERAL OR SLAG WOOL