G04B 47/025
In musical instruments or loudspeakers
Official title: {in musical instruments or loudspeakers (sounding bodies with chimes G04B21/08; in alarm clocks G04B23/028; cases with arrangements for enhancing the sound production G04B37/0075)}
G04B47/025 (In musical instruments or loudspeakers) appears on 22 US grants and 0 published applications in this corpus.
Search patents in G04B- Granted patents
- 22
- Published applications
- 0
- Assignees
- 10
- Inventors
- 26
- Latest grant
- 20 Jul 1999
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 7 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Wearable electronic device and antenna therefor20 Jul 1999US 5,926,144 AMotorola, Inc.
- Music box timepiece26 Jan 1999US 5,864,519 ARhythm Watch Co., Ltd.
- Timepiece with music box20 Oct 1998US 5,825,721 ARhythm Watch Co., Ltd.
- Antennas and their making methods and electronic devices or timepieces with the antennas16 Jun 1998US 5,768,217 ACasio Computer Co., Ltd.
- Wristwatch radiotelephone with deployable voice port14 Nov 1995US 5,467,324 ATimex Corporation
No published applications in this class yet.
Most cited
By later US patents
- Antennas and their making methods and electronic devices or timepieces with the antennas125US 5,768,217 ACasio Computer Co., Ltd. · 1998
- Wrist AM radio receiver95US 4,419,770 ASony Corporation · 1983
- Wristwatch radiotelephone95US 5,251,189 ATimex Corporation · 1993
- Portable radio telephone device94US 5,008,864 AMitsubishi Denki Kabushiki Kaisha · 1991
- Wrist telephone89US 5,239,521 AAT&T Bell Laboratories · 1993