Assignee
PRESERVATION TECHNOLOGIES L P
US·4 granted patents·28 citations·filing 1996–1999
Top patents by PatentIndex Score
4 records- 0157US5770148AMethod and apparatus for the deacidification of library materialsPRESERVATION TECHNOLOGIES L P·Filed 1996·Granted Jun 23, 1998·15 cites·14 claims
- 0253US6060108AMethod for revealing hidden watermarksPRESERVATION TECHNOLOGIES L P·Filed 1998·Granted May 9, 2000·11 cites·30 claims
- 0331US5956860AMethod and apparatus for the deacidification of library materialsPRESERVATION TECHNOLOGIES L P·Filed 1998·Granted Sep 28, 1999·2 cites·28 claims
- 0426US6325982B1Method and apparatus for the deacidification of library materialsPRESERVATION TECHNOLOGIES L P·Filed 1999·Granted Dec 4, 2001·0 cites·20 claims
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