Siebolt Hettinga

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Des Moines, IA, US

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Patents Grantslast 30 patents

Information Patent Grant
Processor-based process control system with intuitive programming c...
- Patent number 6,272,398
- Issue date Aug 7, 2001
- Siebolt Hettinga
- Richard D. Osborne
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Method for determining the precise initial volume of a mold cavity...
- Patent number 6,006,601
- Issue date Dec 28, 1999
- Siebolt Hettinga
- Richard Osborne
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL