Y02P 20/582
Recycling of unreacted starting or intermediate materials
Y02P20/582 (Recycling of unreacted starting or intermediate materials) appears on 5,378 US grants and 4,531 published applications in this corpus.
Search patents in Y02P- Granted patents
- 5,378
- Published applications
- 4,531
- Assignees
- 1,937
- Inventors
- 11,344
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 81 | 0 |
| 1977 | 60 | 0 |
| 1978 | 68 | 0 |
| 1979 | 43 | 0 |
| 1980 | 69 | 0 |
| 1981 | 58 | 0 |
| 1982 | 60 | 0 |
| 1983 | 48 | 0 |
| 1984 | 44 | 0 |
| 1985 | 34 | 0 |
| 1986 | 37 | 0 |
| 1987 | 36 | 0 |
| 1988 | 51 | 0 |
| 1989 | 65 | 0 |
| 1990 | 65 | 0 |
| 1991 | 66 | 0 |
| 1992 | 64 | 0 |
| 1993 | 76 | 0 |
| 1994 | 71 | 0 |
| 1995 | 77 | 0 |
| 1996 | 101 | 0 |
| 1997 | 89 | 0 |
| 1998 | 142 | 0 |
| 1999 | 148 | 0 |
| 2000 | 190 | 0 |
| 2001 | 164 | 27 |
| 2002 | 163 | 195 |
| 2003 | 140 | 298 |
| 2004 | 152 | 277 |
| 2005 | 90 | 163 |
| 2006 | 104 | 154 |
| 2007 | 101 | 148 |
| 2008 | 79 | 158 |
| 2009 | 74 | 176 |
| 2010 | 114 | 230 |
| 2011 | 145 | 229 |
| 2012 | 147 | 206 |
| 2013 | 183 | 215 |
| 2014 | 198 | 226 |
| 2015 | 210 | 231 |
| 2016 | 192 | 259 |
| 2017 | 189 | 207 |
| 2018 | 173 | 157 |
| 2019 | 167 | 153 |
| 2020 | 141 | 161 |
| 2021 | 143 | 178 |
| 2022 | 107 | 171 |
| 2023 | 112 | 129 |
| 2024 | 102 | 76 |
| 2025 | 94 | 58 |
| 2026 | 51 | 49 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Heterogeneous catalyst for transesterification and method of preparing same6 Oct 2026US RE51,051 E1Crystaphase Products, Inc.
- Method for producing an iodofluoroalkane compound18 Aug 2026US 12,709,589 B2Arkema France
- Heterogeneous catalyst for transesterification and method of preparing same18 Aug 2026US RE50,994 E1Crystaphase Products, Inc.
- Removable printing inks for recyclable plastics11 Aug 2026US 12,703,804 B2Sun Chemical Corporation
- High-purity steviol glycosides14 Jul 2026US 12,677,849 B2PureCircle Sdn Bhd
- Light-emitting element, display device, electronic device, and lighting device1 Oct 2026US 2026/0305164 A1Semiconductor Energy Laboratory Co.Ltd.
- Protein/oligonucleotide core-shell nanoparticle therapeutics27 Aug 2026US 2026/0248737 A1Northwestern University
- Fc region variant27 Aug 2026US 2026/0250360 A1Chugai Seiyaku Kabushiki Kaisha
- Therapeutic compounds and compositions13 Aug 2026US 2026/0234110 A1Agios Pharmaceuticals, Inc.
- Curable compound, curable resin composition, cured product, and laminate13 Aug 2026US 2026/0234319 A1DIC Corporation
Most cited
By later US patents
- Process for preparing polynucleotides1,253US 4,458,066 AUniversity Patents, Inc. · 1984
- Method and apparatus for conducting an array of chemical reactions on a support surface1,036US 5,474,796 AProtogene Laboratories, Inc. · 1995
- Methods of amplifying and sequencing nucleic acids960US 7,323,305 B2454 Life Sciences Corporation · 2008
- DNA sequencing by parallel oligonucleotide extensions674US 5,750,341 ALynx Therapeutics, Inc. · 1998
- DNA sequencing by parallel oligonucleotide extensions649US 6,306,597 B1Lynx Therapeutics, Inc. · 2001