H01S 5/06213
Amplitude modulation
Official title: {Amplitude modulation}
H01S5/06213 (Amplitude modulation) appears on 262 US grants and 166 published applications in this corpus.
Search patents in H01S- Granted patents
- 262
- Published applications
- 166
- Assignees
- 181
- Inventors
- 594
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 9 | 0 |
| 1989 | 10 | 0 |
| 1990 | 5 | 0 |
| 1991 | 15 | 0 |
| 1992 | 11 | 0 |
| 1993 | 11 | 0 |
| 1994 | 17 | 0 |
| 1995 | 9 | 0 |
| 1996 | 6 | 0 |
| 1997 | 3 | 0 |
| 1998 | 4 | 0 |
| 1999 | 4 | 0 |
| 2000 | 3 | 0 |
| 2001 | 6 | 4 |
| 2002 | 3 | 6 |
| 2003 | 6 | 5 |
| 2004 | 11 | 6 |
| 2005 | 1 | 4 |
| 2006 | 5 | 1 |
| 2007 | 1 | 6 |
| 2008 | 3 | 3 |
| 2009 | 6 | 5 |
| 2010 | 2 | 10 |
| 2011 | 4 | 7 |
| 2012 | 4 | 5 |
| 2013 | 4 | 3 |
| 2014 | 3 | 12 |
| 2015 | 18 | 9 |
| 2016 | 9 | 3 |
| 2017 | 8 | 11 |
| 2018 | 9 | 9 |
| 2019 | 7 | 12 |
| 2020 | 10 | 6 |
| 2021 | 4 | 12 |
| 2022 | 6 | 7 |
| 2023 | 4 | 5 |
| 2024 | 5 | 5 |
| 2025 | 2 | 4 |
| 2026 | 2 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Random number generator comprising a vertical cavity surface emitting laser4 Aug 2026US 12,700,715 B2Quside Technologies S.L.
- Optical transmission module26 May 2026US 12,640,535 B2Mitsubishi Electric Corporation
- Device and method for optical spectrum measurement15 Jul 2025US 12,359,970 B2Pilot Photonics Ltd.
- DC-coupled laser diode driver circuit with large modulation current8 Apr 2025US 12,272,926 B2
- DML driver17 Sep 2024US 12,095,225 B2Nippon Telegraph and Telephone Corporation
- Two-dimensional photonic crystal laser13 Aug 2026US 2026/0237965 A1Kyoto University
- Directly modulated light source18 Jun 2026US 2026/0171752 A1
- Laser diode driving circuit and laser diode driving method28 May 2026US 2026/0149236 A1NEC Corporation
- Dml driver30 Apr 2026US 2026/0121628 A1Nippon Telegraph and Telephone Corporation
- Non-volatile optical memory bank with iii-v/si micro-ring laser arrays26 Mar 2026US 2026/0086280 A1Hewlett Packard Enterprise Development LP
Most cited
By later US patents
- Intelligent fiberoptic transmitters and methods of operating and manufacturing the same253US 5,812,572 APacific Fiberoptics, Inc. · 1998
- Speckle suppressed laser projection system using RF injection143US 6,600,590 B2Eastman Kodak Company · 2003
- Speckle suppressed laser projection system with partial beam reflection135US 6,625,381 B2Eastman Kodak Company · 2003
- Directly modulated laser optical transmission system106US 7,466,925 B2Emcore Corporation · 2008
- Reduction of non-linear effects in optical fiber communication systems and method of using same83US 5,166,821 AGeneral Instrument Corporation · 1992