Peter Schwerdt

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Frankfurt am Main, DE

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Patents Grantslast 30 patents

Information Patent Grant
Neutralizing agent for paper products
- Patent number 5,322,558
- Issue date Jun 21, 1994
- Battelle Ingenieurtechnik GmbH
- Jurgen Wittekind
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Solvents for agents to mass deacidify books and other paper product...
- Patent number 5,277,842
- Issue date Jan 11, 1994
- Battelle-Institut e.V.
- Juergen Wittekind
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Process and device for nonpolluting mass deacidification of books a...
- Patent number 5,120,500
- Issue date Jun 9, 1992
- Battelle-Institue e.V.
- Rolf Eggersdorfer
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE