Y10S 30/03
Envelope openers
Y10S30/03 (Envelope openers) appears on 38 US grants and 2 published applications in this corpus.
Search patents in Y10S- Granted patents
- 38
- Published applications
- 2
- Assignees
- 11
- Inventors
- 44
- Latest grant
- 11 Oct 2005
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 0 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 2 | 0 |
| 2004 | 1 | 0 |
| 2005 | 2 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
Most cited
By later US patents
- Hand held opening apparatus72US 4,455,894 A1984
- Letter opener with protected recess for business card and removable slide-in cover55US 5,285,577 AQuick Point, Inc. · 1994
- Envelope opener42US 4,711,031 A1987
- Bag opener apparatus41US 5,007,171 A1991
- Combined letter opener and sheet-like material cutter tool35US 6,003,181 APacific Handy Cutter, Inc. · 1999