C03C 2201/34
Containing rare earth metals
Official title: containing rare earth metals (C03C2201/36 takes precedence)
C03C2201/34 (Containing rare earth metals) appears on 113 US grants and 128 published applications in this corpus.
Search patents in C03C- Granted patents
- 113
- Published applications
- 128
- Assignees
- 76
- Inventors
- 362
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 2 |
| 2002 | 4 | 6 |
| 2003 | 5 | 14 |
| 2004 | 5 | 2 |
| 2005 | 3 | 5 |
| 2006 | 2 | 2 |
| 2007 | 2 | 2 |
| 2008 | 4 | 7 |
| 2009 | 1 | 5 |
| 2010 | 3 | 6 |
| 2011 | 4 | 5 |
| 2012 | 2 | 4 |
| 2013 | 5 | 3 |
| 2014 | 3 | 3 |
| 2015 | 2 | 1 |
| 2016 | 5 | 5 |
| 2017 | 0 | 1 |
| 2018 | 2 | 5 |
| 2019 | 5 | 8 |
| 2020 | 2 | 6 |
| 2021 | 5 | 3 |
| 2022 | 6 | 8 |
| 2023 | 6 | 6 |
| 2024 | 5 | 5 |
| 2025 | 2 | 7 |
| 2026 | 2 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C03C 2201/36Containing rare earth metals and aluminiumIndexing code49
- C03C 2201/3423CeriumIndexing code25
- C03C 2201/3411YttriumIndexing code24
- C03C 2201/3476ErbiumIndexing code23
- C03C 2201/3488YtterbiumIndexing code23
- C03C 2201/3435NeodymiumIndexing code15
- C03C 2201/3417LanthanumIndexing code12
- C03C 2201/3482ThuliumIndexing code12
All 17 subgroupsShow fewer
- C03C 2201/3447EuropiumIndexing code9
- C03C 2201/3429PraseodymiumIndexing code6
- C03C 2201/3458TerbiumIndexing code6
- C03C 2201/347HolmiumIndexing code5
- C03C 2201/3441SamariumIndexing code3
- C03C 2201/3452GadoliniumIndexing code3
- C03C 2201/3405ScandiumIndexing code2
- C03C 2201/3494LutetiumIndexing code2
- C03C 2201/3464DysprosiumIndexing code0
Recent patents
- Decorative composition and utilization thereof26 May 2026US 12,637,385 B2Noritake Co., Limited
- Glasses having high fracture toughness12 May 2026US 12,623,952 B2Corning Incorporated
- Optical glass, optical element composed of optical glass, optical system interchangeable lens, and optical device11 Nov 2025US 12,466,759 B2Nikon Corporation
- Silicoborate and borosilicate glasses having high refractive index and high transmittance to blue light7 Jan 2025US 12,187,644 B2Corning Incorporated
- Radiation-resistant laser optical fiber preform core rod and preparation method therefor4 Jun 2024US 12,001,052 B2Shanghai Institute of Optics And Fine Mechanics, Chinese Academy of Sciences
- Chemically strengthened glass, cover glass, display, and solar cell module10 Sep 2026US 2026/0265118 A1AGC Inc.
- Optical glass and optical element27 Aug 2026US 2026/0250179 A1Hoya Corporation
- Glasses having high fracture toughness13 Aug 2026US 2026/0234048 A1Corning Incorporated
- Glass6 Aug 2026US 2026/0225939 A1AGC Inc.
- Glass and method for manufacturing glass30 Jul 2026US 2026/0217592 A1AGC Inc.
Most cited
By later US patents
- Rare earth doped and large effective area optical fibers for fiber lasers and amplifiers222US 8,213,758 B2Imra America, Inc. · 2012
- Ytterbium-doped optical fiber, fiber laser, and fiber amplifier219US 8,363,313 B2Fujikura Ltd. · 2013
- Rare earth doped and large effective area optical fibers for fiber lasers and amplifiers219US 8,542,968 B2Imra America, Inc. · 2013
- Quartz glass with reduced ultraviolet radiation transmissivity, and electrical discharge lamp using such glass35US 5,572,091 APatent-Treuhand-Gesellschaft f ur elektrische Gl uhlampen mbH · 1996
- Doped silica glass31US 6,136,736 AGeneral Electric Company · 2000