Spirac Engineering AB
Malmo, SE· latest recorded location
Spirac Engineering AB is named on 17 US grants and 0 published applications in this corpus. Its most frequent classification is B01D (Separation).
- Granted patents
- 17
- Published applications
- 0
- Inventors
- 1
- Granted in 2026 so far
- 0
- Most recent grant
- 19 Mar 2002
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
By publication year.
Technology areas
Share of 17 documents
- B01DSeparation5
- B30BPresses in general5
- B65GTransport or storage devices5
- E03FSewers2
- F16HGearing2
- Y10TTechnical subjects covered by former us classification2
- B03BSeparating solid materials using liquids or using pneumatic tables or jigs1
- B07BSeparating solids from solids by sieving, screening, sifting or by using gas1
Recent patents
- Conveyor arrangements with multiple shaftless screws19 Mar 2002US 6,357,577 B1
- Apparatus for screening13 Feb 2001US 6,187,180 B1
- Apparatus for separation1 Aug 2000US 6,096,201 A
- Displacement device8 Jun 1999US 5,910,243 A
- Apparatus for discharge of sediment from a tank14 Oct 1997US 5,676,827 A
No published applications.
Most cited
By later US patents