H01S 3/1305
Feedback control systems
Official title: {Feedback control systems}
H01S3/1305 (Feedback control systems) appears on 1,052 US grants and 1,113 published applications in this corpus.
Search patents in H01S- Granted patents
- 1,052
- Published applications
- 1,113
- Assignees
- 477
- Inventors
- 2,220
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 4 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 4 | 0 |
| 1998 | 12 | 0 |
| 1999 | 15 | 0 |
| 2000 | 11 | 0 |
| 2001 | 23 | 12 |
| 2002 | 27 | 44 |
| 2003 | 45 | 43 |
| 2004 | 40 | 42 |
| 2005 | 25 | 47 |
| 2006 | 41 | 37 |
| 2007 | 25 | 18 |
| 2008 | 21 | 33 |
| 2009 | 30 | 44 |
| 2010 | 35 | 32 |
| 2011 | 32 | 29 |
| 2012 | 27 | 25 |
| 2013 | 31 | 42 |
| 2014 | 44 | 30 |
| 2015 | 37 | 40 |
| 2016 | 29 | 48 |
| 2017 | 57 | 57 |
| 2018 | 42 | 63 |
| 2019 | 60 | 48 |
| 2020 | 51 | 61 |
| 2021 | 45 | 67 |
| 2022 | 50 | 63 |
| 2023 | 44 | 46 |
| 2024 | 50 | 69 |
| 2025 | 55 | 37 |
| 2026 | 30 | 36 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method and apparatus for compensating a reference frequency shift8 Sep 2026US 12,731,954 B2Adtran Networks SE
- Optical circuit for compensating optical lead fluctuations in an RFOG25 Aug 2026US 12,716,723 B2Honeywell International Inc.
- Radiation source and a method for generating electromagnetic radiation at a plurality of frequencies18 Aug 2026US 12,712,332 B2Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
- Robust and intrinsically safe laser failure detection in the electrical circuit7 Jul 2026US 12,676,456 B2Signify Holding B. V.
- Laser system with active wavelength control30 Jun 2026US 12,671,225 B2Lightmatter, Inc.
- Systems and methods for calibrating laser pulses1 Oct 2026US 2026/0302710 A1Boston Scientific Scimed, Inc.
- Optical Waveguide Color Center Creation System1 Oct 2026US 2026/0302714 A1The Boeing Company
- Modulation transfer spectroscopy device1 Oct 2026US 2026/0302715 A1
- Laser system with active wavelength control1 Oct 2026US 2026/0302716 A1Lightmatter, Inc.
- Optical element, wavelength detection unit, and light generation unit17 Sep 2026US 2026/0276453 A1Hamamatsu Photonics K.K.
Most cited
By later US patents
- Mode locking methods and apparatus228US 7,414,779 B2Massachusetts Institute of Technology · 2008
- Very narrow band, two chamber, high rep rate gas discharge laser system144US 6,567,450 B2Cymer, Inc. · 2003
- Very narrow band, two chamber, high rep rate gas discharge laser system136US 6,625,191 B2Cymer, Inc. · 2003
- Dynamic controller for a multi-channel optical amplifier132US 6,535,330 B1Corning Incorporated · 2003
- Method and device for wavelength locking130US 5,798,859 AJDS Fitel Inc. · 1998