D06P 3/348
Using reactive dyes
Official title: {using reactive dyes}
D06P3/348 (Using reactive dyes) appears on 5 US grants and 0 published applications in this corpus.
Search patents in D06P- Granted patents
- 5
- Published applications
- 0
- Assignees
- 4
- Inventors
- 13
- Latest grant
- 17 Aug 1999
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Method for preparing tinted contact lens17 Aug 1999US 5,938,795 AJohnson & Johnson Vision Products, Inc.
- Process for tinting contact lens4 Oct 1994US 5,352,245 ACiba-Geigy Corporation
- Method for preparing tinted contact lens8 Mar 1994US 5,292,350 AVistakon, Inc.
- Method for tinting a hydrophilic contact lens30 Nov 1993US 5,266,077 ACiba-Geigy Corporation
- Method for tinting a hydrophilic polymer by incorporating a reactive dye into the polymer prior to polymerization29 Sep 1992US 5,151,106 AAllergan, Inc.
No published applications in this class yet.
Most cited
By later US patents
- Method for preparing tinted contact lens21US 5,292,350 AVistakon, Inc. · 1994
- Method for tinting a hydrophilic contact lens16US 5,266,077 ACiba-Geigy Corporation · 1993
- Process for tinting contact lens15US 5,352,245 ACiba-Geigy Corporation · 1994
- Method for tinting a hydrophilic polymer by incorporating a reactive dye into the polymer prior to polymerization13US 5,151,106 AAllergan, Inc. · 1992
- Method for preparing tinted contact lens8US 5,938,795 AJohnson & Johnson Vision Products, Inc. · 1999