Siebolt Hettinga
Des Moines, IA, US· latest recorded location
Siebolt Hettinga is named on 2 US grants and 0 published applications in this corpus. Its most frequent classification is B29C (Shaping or joining of plastics).
- Granted patents
- 2
- Published applications
- 0
- Inventors
- 3
- Granted in 2026 so far
- 0
- Most recent grant
- 7 Aug 2001
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
By publication year.
Technology areas
Share of 2 documents
Recent patents
- Processor-based process control system with intuitive programming capabilities7 Aug 2001US 6,272,398 B1
- Method for determining the precise initial volume of a mold cavity of an injection molding machine28 Dec 1999US 6,006,601 A
No published applications.
Most cited
By later US patents