Robert M. Gaydos

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Patents Grantslast 30 patents

Information Patent Grant
Deacidification of cellulose based materials using hydrofluoroether...
- Patent number 6,342,098
- Issue date Jan 29, 2002
- Preservation Technologies LP
- Lee H. Leiner
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Deacidification of cellulose based materials using hydrofluoroether...
- Patent number 6,080,448
- Issue date Jun 27, 2000
- Preservation Technologies LP
- Lee H. Leiner
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method for revealing hidden watermarks
- Patent number 6,060,108
- Issue date May 9, 2000
- Preservation Technologies, L.P.
- James E. Burd
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Method and apparatus for the deacidification of library materials
- Patent number 5,422,147
- Issue date Jun 6, 1995
- Preservation Technologies, Inc.
- Lee H. Leiner
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE