F24S 23/31
Having discontinuous faces
Official title: {having discontinuous faces, e.g. Fresnel lenses}
F24S23/31 (Having discontinuous faces) appears on 338 US grants and 380 published applications in this corpus.
Search patents in F24S- Granted patents
- 338
- Published applications
- 380
- Assignees
- 212
- Inventors
- 741
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 3 | 0 |
| 1978 | 6 | 0 |
| 1979 | 4 | 0 |
| 1980 | 7 | 0 |
| 1981 | 15 | 0 |
| 1982 | 8 | 0 |
| 1983 | 6 | 0 |
| 1984 | 6 | 0 |
| 1985 | 7 | 0 |
| 1986 | 5 | 0 |
| 1987 | 6 | 0 |
| 1988 | 4 | 0 |
| 1989 | 7 | 0 |
| 1990 | 6 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 6 | 0 |
| 1994 | 2 | 0 |
| 1995 | 4 | 0 |
| 1996 | 5 | 0 |
| 1997 | 8 | 0 |
| 1998 | 3 | 0 |
| 1999 | 6 | 0 |
| 2000 | 6 | 0 |
| 2001 | 5 | 2 |
| 2002 | 5 | 3 |
| 2003 | 4 | 10 |
| 2004 | 8 | 5 |
| 2005 | 3 | 6 |
| 2006 | 1 | 7 |
| 2007 | 5 | 15 |
| 2008 | 2 | 18 |
| 2009 | 1 | 25 |
| 2010 | 10 | 41 |
| 2011 | 10 | 37 |
| 2012 | 18 | 32 |
| 2013 | 11 | 23 |
| 2014 | 8 | 15 |
| 2015 | 21 | 13 |
| 2016 | 11 | 13 |
| 2017 | 10 | 8 |
| 2018 | 7 | 12 |
| 2019 | 16 | 16 |
| 2020 | 9 | 11 |
| 2021 | 8 | 15 |
| 2022 | 8 | 12 |
| 2023 | 6 | 4 |
| 2024 | 4 | 13 |
| 2025 | 5 | 11 |
| 2026 | 6 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Solar energy utilization device28 Jul 2026US 12,693,043 B2Boly Media Communications (Shenzhen) Co., Ltd.
- Solar energy utilization device26 May 2026US 12,640,679 B2Bolymedia Holdings Co. Ltd.
- Solar energy utilization apparatus28 Apr 2026US 12,615,009 B2Boly Media Communications (Shenzhen) Co., Ltd.
- Solar energy utilization apparatus and combined structure thereof17 Mar 2026US 12,578,123 B2Bolymedia Holdings Co. Ltd.
- Fresnel spot lens desalinization system and method10 Mar 2026US 12,569,780 B2
- A total internal photonic absorption hexagonal system30 Jul 2026US 2026/0221934 A1Tipa Tech Limited
- Segmented Solar Concentrator Manufacturing and Assembly for Achieving Imaging and Nonimaging Irradiance Properties9 Jul 2026US 2026/0192475 A1Exowatt, Inc.
- System for converting solar energy into mechanical energy (scseme)14 May 2026US 2026/0132963 A1
- System for converting solar energy into mechanical energy (scseme)14 May 2026US 2026/0132964 A1
- Solar collection platform providing multi-drive fresnel lens trackers for sequential heat collection14 May 2026US 2026/0132966 A1Exowatt, Inc.
Most cited
By later US patents
- TIR lens for waveguide injection208US 5,806,955 ATIR Technologies, Inc. · 1998
- Multiple wavelength light processor190US 5,655,832 ATIR Technologies, Inc. · 1997
- Directional image transmission sheet and method of making same154US 5,644,431 AUniversity of Arkansas, N.A. · 1997
- Faceted totally internally reflecting lens with individually curved faces on facets146US 5,404,869 ATIR Technologies, Inc. · 1995
- Motion-free tracking solar concentrator140US 6,958,868 B12005