Y02P 20/00
Technologies relating to chemical industry
Y02P20/00 (Technologies relating to chemical industry) appears on 36,077 US grants and 32,277 published applications in this corpus.
Search patents in Y02P- Granted patents
- 36,077
- Published applications
- 32,277
- Assignees
- 10,626
- Inventors
- 70,076
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 373 | 0 |
| 1977 | 364 | 0 |
| 1978 | 403 | 0 |
| 1979 | 259 | 0 |
| 1980 | 403 | 0 |
| 1981 | 431 | 0 |
| 1982 | 439 | 0 |
| 1983 | 410 | 0 |
| 1984 | 444 | 0 |
| 1985 | 414 | 0 |
| 1986 | 370 | 0 |
| 1987 | 371 | 0 |
| 1988 | 371 | 0 |
| 1989 | 427 | 0 |
| 1990 | 465 | 0 |
| 1991 | 423 | 0 |
| 1992 | 475 | 0 |
| 1993 | 479 | 0 |
| 1994 | 460 | 0 |
| 1995 | 527 | 0 |
| 1996 | 563 | 0 |
| 1997 | 628 | 0 |
| 1998 | 722 | 0 |
| 1999 | 722 | 0 |
| 2000 | 791 | 0 |
| 2001 | 746 | 179 |
| 2002 | 772 | 806 |
| 2003 | 743 | 1343 |
| 2004 | 636 | 1252 |
| 2005 | 535 | 993 |
| 2006 | 685 | 953 |
| 2007 | 631 | 1010 |
| 2008 | 552 | 1120 |
| 2009 | 613 | 1219 |
| 2010 | 847 | 1612 |
| 2011 | 918 | 1550 |
| 2012 | 968 | 1519 |
| 2013 | 1199 | 1641 |
| 2014 | 1259 | 1708 |
| 2015 | 1333 | 1662 |
| 2016 | 1632 | 1573 |
| 2017 | 1361 | 1479 |
| 2018 | 1237 | 1396 |
| 2019 | 1276 | 1434 |
| 2020 | 1178 | 1349 |
| 2021 | 1073 | 1409 |
| 2022 | 898 | 1410 |
| 2023 | 996 | 1624 |
| 2024 | 926 | 967 |
| 2025 | 874 | 726 |
| 2026 | 455 | 343 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- Y02P 20/50Improvements relating to the production of bulk chemicals24,853
- Y02P 20/10Process efficiency6,979
- Y02P 20/141Feedstock4,124
- Y02P 20/151Reduction of greenhouse gas [ghg] emissions1,937
- Y02P 20/20Improvements relating to chlorine production34
- Y02P 20/30Improvements relating to adipic acid or caprolactam production14
- Y02P 20/40Improvements relating to fluorochloro hydrocarbon1
Recent patents
- Heterogeneous catalyst for transesterification and method of preparing same6 Oct 2026US RE51,051 E1Crystaphase Products, Inc.
- Freeze concentration for urine-based fertilizer production29 Sep 2026US 12,747,194 B2The Regents of the University of Michigan
- Method for manufacturing polyester film having laminated structure29 Sep 2026US 12,747,326 B2Nan Ya Plastics Corporation
- Solid supports and phosphoramidite building blocks for oligonucleotide conjugates15 Sep 2026US 12,735,387 B2AM Chemicals LLC
- Photovoltaic power generation systems and methods regarding same8 Sep 2026US 12,732,131 B2Brilliant Light Power, Inc.
- Compositions and Methods for Coating of Nitrification Inhibitors with a Solution Containing a High Concentration of Urease Inhibitors and For Improved Retention of the Nitrogen Content of Soil Through the Administration of Liquid Delivery Formulations of (Aminomethylene)Phosphinic Acids and/or their Salts1 Oct 2026US 2026/0296987 A1Soilgenic Technologies, LLC
- Light-emitting element, display device, electronic device, and lighting device1 Oct 2026US 2026/0305164 A1Semiconductor Energy Laboratory Co.Ltd.
- Power generation and methods regarding same24 Sep 2026US 2026/0286883 A1Brilliant Light Power, Inc.
- Biomineral crystal material, preparation method thereof and sleep-aiding technology pillow27 Aug 2026US 2026/0248725 A1Zhengqi New Materials Technology(Changzhou) Co., Ltd.
- Protein/oligonucleotide core-shell nanoparticle therapeutics27 Aug 2026US 2026/0248737 A1Northwestern University
Most cited
By later US patents
- Large scale photolithographic solid phase synthesis of polypeptides and receptor binding screening thereof1,998US 5,143,854 AAffymax Technologies N.V. · 1992
- Array of oligonucleotides on a solid substrate1,585US 5,445,934 AAffymax Technologies N.V. · 1995
- Arrays of materials attached to a substrate1,410US 5,744,305 AAffymetrix, Inc. · 1998
- 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