H01S 3/1613
Praseodymium
Official title: {praseodymium}
H01S3/1613 (Praseodymium) appears on 91 US grants and 80 published applications in this corpus.
Search patents in H01S- Granted patents
- 91
- Published applications
- 80
- Assignees
- 77
- Inventors
- 280
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 5 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 6 | 0 |
| 1999 | 2 | 0 |
| 2000 | 7 | 0 |
| 2001 | 2 | 1 |
| 2002 | 7 | 5 |
| 2003 | 5 | 2 |
| 2004 | 4 | 3 |
| 2005 | 4 | 7 |
| 2006 | 2 | 0 |
| 2007 | 2 | 7 |
| 2008 | 1 | 0 |
| 2009 | 0 | 2 |
| 2010 | 0 | 4 |
| 2011 | 2 | 3 |
| 2012 | 2 | 5 |
| 2013 | 2 | 1 |
| 2014 | 1 | 0 |
| 2015 | 0 | 1 |
| 2016 | 1 | 1 |
| 2017 | 1 | 1 |
| 2018 | 1 | 2 |
| 2019 | 2 | 3 |
| 2020 | 3 | 7 |
| 2021 | 4 | 2 |
| 2022 | 3 | 6 |
| 2023 | 2 | 8 |
| 2024 | 4 | 2 |
| 2025 | 2 | 4 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Optical waveguide amplifiers with doped silicon-based core2 Jun 2026US 12,646,903 B2Hewlett Packard Enterprise Development LP
- System and method for amplification of green laser pulses3 Mar 2026US 12,567,717 B2Imra America, Inc.
- Ultraviolet laser apparatus23 Dec 2025US 12,506,318 B2Kimmon Koha Co., Ltd.
- Semiconductor laser device25 Nov 2025US 12,483,002 B2Nichia Corporation
- Laser apparatus31 Dec 2024US 12,184,032 B2Kimmon Koha Co., Ltd.
- Praseodymium optical fiber14 May 2026US 2026/0135345 A1King Fahd University of Petroleum and Minerals
- Optically pumped solid-state laser16 Apr 2026US 2026/0106428 A1ams-OSRAM International GmbH
- Photonic integrated circuit comprising gain medium, and optoelectronic device16 Apr 2026US 2026/0106430 A1ams-OSRAM International GmbH
- Visible ceramic laser, gain medium for same, and process of making the gain medium6 Nov 2025US 2025/0343389 A1Imra America, Inc.
- Optical waveguide amplifiers with doped silicon-based core17 Apr 2025US 2025/0125577 A1Hewlett Packard Enterprise Development LP
Most cited
By later US patents
- Dual frequency laser amplifier array and operating method therefor54US 6,061,170 AMcDonnell Douglas Corporation · 2000
- Laser sintering apparatus51US 6,717,106 B2Fuji Photo Film Co., Ltd. · 2004
- Dual-band fiber optic amplification system using a single pump source46US 5,978,130 AMCI Communications Corporation · 1999
- Color laser display apparatus having fluorescent screen scanned with modulated ultraviolet laser light42US 6,900,916 B2Fuji Photo Film Co., Ltd. · 2005
- Gain controlled optical fibre amplifier40US 5,991,068 ABritish Telecommunications Public Ltd.Co. · 1999