PRESERVATION TECHNOLOGIES, L.P

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CRANBERRY TOWNSHIP, PA, US

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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
Method and apparatus for the deacidification of library materials
- Patent number 6,325,982
- Issue date Dec 4, 2001
- Preservation Technologies, L.P.
- 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 5,956,860
- Issue date Sep 28, 1999
- Preservation Technologies, L.P.
- Lee H. Leiner
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method and apparatus for the deacidification of library materials
- Patent number 5,770,148
- Issue date Jun 23, 1998
- Preservation Technologies, L.P.
- Lee H. Leiner
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE

Patents Applicationslast 30 patents

Trademarklast 30 trademarks

Information Trademark
76372075 - PAPER BRIGHT
- Serial number 76372075
- Registration number 2730500
- Filing date Feb 19, 2002
- Preservation Technologies, LP
- 1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information Trademark
75784218 - CLARITY
- Serial number 75784218
- Registration number 2372798
- Filing date Aug 25, 1999
- Preservation Technologies, LP
- 1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information Trademark
75416615 - ARCHIVAL MIST
- Serial number 75416615
- Registration number 2417898
- Filing date Jan 12, 1998
- Preservation Technologies, LP
- 1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry