Y10S 159/34
Caustic
Y10S159/34 (Caustic) appears on 9 US grants and 0 published applications in this corpus.
Search patents in Y10S- Granted patents
- 9
- Published applications
- 0
- Assignees
- 9
- Inventors
- 18
- Latest grant
- 11 Jul 1995
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Process for spray-drying materials and mixtures thereof using superheated steam11 Jul 1995US 5,431,780 AHenkel Kommanditgesellschaft auf Aktien
- Process for the recovery of heat and chemicals from spent liquor27 Jul 1993US 5,230,773 AOy Tampella AB
- System for concentrating a spent caustic stream11 May 1993US 5,209,828 AMobil Oil Corporation
- Apparatus for preparing high-concentration alkali22 May 1990US 4,927,494 ASulzer-Escher Wyss GmbH
- Method and apparatus for preparing high-concentration alkali16 May 1989US 4,830,707 ASulzer-Escher Wyss GmbH
No published applications in this class yet.
Most cited
By later US patents
- Process for spray-drying materials and mixtures thereof using superheated steam23US 5,431,780 AHenkel Kommanditgesellschaft auf Aktien · 1995
- Automatic control of a multiple-effect evaporator21US 4,676,870 APhillips Petroleum Company · 1987
- Suppression of corrosion in caustic manufacturing systems10US 4,585,579 AOccidental Chemical Corporation · 1986
- Cooling aqueous alkali metal hydroxide liquors by vacuum evaporation with subsequent solids precipitate removal5US 3,963,424 AWhiting Corporation · 1976
- System for concentrating a spent caustic stream5US 5,209,828 AMobil Oil Corporation · 1993