Raymond R. Rydman

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Coleman, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Process of making a zipper for a reclosable thermoplastic bag
- Patent number 6,021,557
- Issue date Feb 8, 2000
- S. C. Johnson Home Storage Inc.
- Brian C. Dais
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Apparatus for making a zipper for a reclosable thermoplastic bag
- Patent number 5,962,040
- Issue date Oct 5, 1999
- Dowbrands L.P.
- Brian C. Dais
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Apparatus for making a zipper for a reclosable thermoplastic bag
- Patent number 5,478,228
- Issue date Dec 26, 1995
- Dowbrands L.P.
- Brian C. Dais
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Method of making a zipper for reclosable thermoplastic bag
- Patent number 5,307,552
- Issue date May 3, 1994
- Dowbrands L.P.
- Brian C. Dais
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Zipper for a reclosable thermoplastic bag and a process and apparat...
- Patent number 5,070,584
- Issue date Dec 10, 1991
- Dowbrands Inc.
- Brian C. Dais
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL