Hugo Specker

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Sempach Stadt, CH

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Patents Grantslast 30 patents

Information Patent Grant
Process for manufacture of crimped polyester yarn from cold drawn p...
- Patent number 5,139,725
- Issue date Aug 18, 1992
- Rhone-Poulenc Viscosuisse S.A.
- Hugo Specker
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Grant
Process for manufacturing a smooth polyester yarn and yarn so obtained
- Patent number 5,106,685
- Issue date Apr 21, 1992
- Rhone-Poulenc Viscosuisse SA
- Hugo Specker
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Grant
Product and method of producing a smooth polyester yarn
- Patent number 4,950,539
- Issue date Aug 21, 1990
- Viscosuisse S.A.
- Hugo Specker
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Grant
Crimped polyester-yarn from cold drawn polyester-POY-yarn and proce...
- Patent number 4,908,269
- Issue date Mar 13, 1990
- Viscosuisse S.A.
- Hugo Specker
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING