C01B 25/418
After-treatment
Official title: {After-treatment}
C01B25/418 (After-treatment) appears on 17 US grants and 0 published applications in this corpus.
Search patents in C01B- Granted patents
- 17
- Published applications
- 0
- Assignees
- 4
- Inventors
- 23
- Latest grant
- 15 Mar 1994
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Process for preparing high absorptivity granular sodium phosphates15 Mar 1994US 5,294,424 AMonsanto Company
- Process for preparing medium density granular sodium tripolyphosphate1 Jun 1993US 5,215,731 AMonsanto Company
- Process for preparing medium density granular sodium phosphates3 Sep 1991US 5,045,294 AMonsanto Company
- Moisturized compositions of hydrate-forming phosphates and methods for preparation thereof1 Aug 1989US 4,853,144 A
- Moisturized compositions of hydrate-forming phosphates and methods for preparation thereof7 Feb 1989US 4,803,058 AMonsanto Company
No published applications in this class yet.
Most cited
By later US patents
- Process for preparing medium density granular sodium tripolyphosphate9US 3,932,590 AFMC Corporation · 1976
- Production of low density granular sodium tripolyphosphate7US 4,134,963 AFMC Corporation · 1979
- Preparation of granular sodium tripolyphosphate products from screen undersize sodium tripolyphosphate particles7US 4,251,498 AFMC Corporation · 1981
- Process for making a granular product containing sodium triphosphate7US 4,800,055 AHoechst Aktiengesellschaft · 1989
- Preparation of granular sodium tripolyphosphate products6US 4,255,274 AFMC Corporation · 1981