Devron Engineering Ltd.
Vancouver, CA· latest recorded location
Devron Engineering Ltd. is named on 6 US grants and 0 published applications in this corpus. Its most frequent classification is D21F (Paper-making machines).
- Granted patents
- 6
- Published applications
- 0
- Inventors
- 4
- Granted in 2026 so far
- 0
- Most recent grant
- 24 Mar 1987
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
By publication year.
Technology areas
Share of 6 documents
Recent patents
- Force limiter24 Mar 1987US 4,651,981 A
- Solenoid operated check valve30 Dec 1986US 4,631,923 A
- Surge suppression device16 Sep 1986US 4,612,089 A
- Steam distribution24 Apr 1984US 4,444,622 A
- Steam supply apparatus21 Sep 1976US RE28,968 E
No published applications.
Most cited
By later US patents