F16T 1/305
Using levers
Official title: {using levers}
F16T1/305 (Using levers) appears on 8 US grants and 0 published applications in this corpus.
Search patents in F16T- Granted patents
- 8
- Published applications
- 0
- Assignees
- 5
- Inventors
- 11
- Latest grant
- 19 Nov 1991
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Steam trap with separate steam and condensate inlets19 Nov 1991US 5,065,785 AArmstrong International, Inc.
- Combined inlet and outlet fitting2 Apr 1985US 4,508,135 AArmstrong International, Inc.
- Dual fulcrum steam trap14 Jun 1983US 4,387,733 AClark-Reliance Corporation
- Inverted bucket steam trap19 Jan 1982US 4,311,162 AYarway Corporation
- Steam trap18 Sep 1979US 4,168,029 AVapor Corporation
No published applications in this class yet.
Most cited
By later US patents
- Steam trap with separate steam and condensate inlets21US 5,065,785 AArmstrong International, Inc. · 1991
- Combined inlet and outlet fitting17US 4,508,135 AArmstrong International, Inc. · 1985
- Inverted bucket steam trap12US 4,149,557 AArmstrong Machine Works · 1979
- Means for separation and drainage of liquid from a point between successive stages of steam utilization7US 3,933,449 A1976
- Dual fulcrum steam trap4US 4,387,733 AClark-Reliance Corporation · 1983