Y10S 159/05
Freezing
Y10S159/05 (Freezing) appears on 6 US grants and 0 published applications in this corpus.
Search patents in Y10S- Granted patents
- 6
- Published applications
- 0
- Assignees
- 5
- Inventors
- 7
- Latest grant
- 25 Mar 1997
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Method of freeze drying sewage sludge25 Mar 1997US 5,614,107 AEnviro-Tech-2000, Inc.
- Method for treating mechanical pulp plant effluent29 Dec 1992US 5,174,859 AHpd, LLC
- Process for separating soap from black liquor10 May 1977US 4,022,653 AWestvaco Corporation
- Freeze-thaw method for reducing mineral content of a clay-water mixture19 Apr 1977US 4,018,682 ASunoco Energy Development Co.
- Process for purification by cryogenic sublimation16 Nov 1976US 3,992,159 ABell Telephone Laboratories, Incorporated
No published applications in this class yet.
Most cited
By later US patents
- Method for treating mechanical pulp plant effluent9US 5,174,859 AHpd, LLC · 1992
- Method of freeze drying sewage sludge8US 5,614,107 AEnviro-Tech-2000, Inc. · 1997
- Process for purification by cryogenic sublimation6US 3,992,159 ABell Telephone Laboratories, Incorporated · 1976
- Freeze-thaw method for reducing mineral content of a clay-water mixture6US 4,018,682 ASunoco Energy Development Co. · 1977
- Freeze concentration recovery process for wood pulping2US 3,987,641 AWestvaco Corporation · 1976