Opt Engineering Co., Ltd.
JP· latest recorded location
Opt Engineering Co., Ltd. is named on 8 US grants and 2 published applications in this corpus. Its most frequent classification is B21J (Forging).
- Granted patents
- 8
- Published applications
- 2
- Inventors
- 4
- Granted in 2026 so far
- 0
- Most recent grant
- 9 Jan 2007
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 2 |
| 2006 | 1 | 0 |
| 2007 | 1 | 0 |
By publication year.
Technology areas
Share of 10 documents
- B21JForging10
- Y10TTechnical subjects covered by former us classification8
- B65DContainers for storage or transport of articles or materials3
- F16BDevices for fastening or securing constructional elements or machine parts together3
- Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests2
- B23PMetal-working not otherwise provided for1
Recent patents
- Continuous riveter and continuously caulking method of blind rivets9 Jan 2007US 7,159,291 B2
- Device for installing rivets on rivet holding body16 May 2006US 7,043,827 B2
- Continuous riveter7 Oct 2003US 6,629,360 B2
- Blind rivet holder29 Feb 2000US 6,029,814 A
- Continuous riveting machine for fastening blind rivets29 Jul 1997US 5,651,169 A
Most cited
By later US patents
- Continuous riveting machine for fastening blind rivets22US 5,651,169 A1997
- Blind rivet holder13US 6,029,814 A2000
- Continuous riveter and continuously caulking method of blind rivets11US 7,159,291 B22007
- Feed belt for rivets10US 5,090,607 A1992
- Continuous riveting method for fastening blind rivets10US 5,544,407 A1996