C09H 1/04
Pretreatment of collagen-containing raw materials for the manufacture of glue: of hides
Official title: of hides, hoofs, or leather scrap (recovery of tanning agents C14C)
C09H1/04 (Pretreatment of collagen-containing raw materials for the manufacture of glue: of hides) appears on 7 US grants and 1 published applications in this corpus.
Search patents in C09H- Granted patents
- 7
- Published applications
- 1
- Assignees
- 5
- Inventors
- 12
- Latest grant
- 18 Jul 2006
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 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 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Process for gelatines extraction and chromium salts recovery from tanned hides and skins shavings18 Jul 2006US 7,077,966 B2Artoni S.A.S. Di Artoni Giancarlo & Co.
- Method of dissolving collagen-containing tissues6 Oct 1981US 4,293,647 ARohm Co., Ltd.
- Method of processing mechanically removed porcine skins for ultimate gelatin or leather production16 Sep 1980US 4,222,741 ADubuque Packing Company
- Method for dissolving collagen-containing skin tissues1 Jul 1980US 4,210,721 A
- Process for obtaining maleic acid anhydride4 Mar 1980US 4,191,695 ALonza Ltd.
Most cited
By later US patents
- Method of dissolving collagen-containing tissues15US 4,293,647 ARohm Co., Ltd. · 1981
- Process for obtaining gelatin4US 4,176,117 A1979
- Method for dissolving collagen-containing skin tissues4US 4,210,721 A1980
- Process for obtaining maleic acid anhydride3US 4,191,695 ALonza Ltd. · 1980
- Method of processing mechanically removed porcine skins for ultimate gelatin or leather production3US 4,222,741 ADubuque Packing Company · 1980