Y02P 20/50
Improvements relating to the production of bulk chemicals
Y02P20/50 (Improvements relating to the production of bulk chemicals) appears on 24,853 US grants and 20,418 published applications in this corpus.
Search patents in Y02P- Granted patents
- 24,853
- Published applications
- 20,418
- Assignees
- 6,860
- Inventors
- 49,604
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 299 | 0 |
| 1977 | 269 | 0 |
| 1978 | 305 | 0 |
| 1979 | 186 | 0 |
| 1980 | 284 | 0 |
| 1981 | 328 | 0 |
| 1982 | 339 | 0 |
| 1983 | 307 | 0 |
| 1984 | 320 | 0 |
| 1985 | 303 | 0 |
| 1986 | 281 | 0 |
| 1987 | 274 | 0 |
| 1988 | 292 | 0 |
| 1989 | 350 | 0 |
| 1990 | 377 | 0 |
| 1991 | 315 | 0 |
| 1992 | 366 | 0 |
| 1993 | 354 | 0 |
| 1994 | 339 | 0 |
| 1995 | 403 | 0 |
| 1996 | 438 | 0 |
| 1997 | 478 | 0 |
| 1998 | 552 | 0 |
| 1999 | 569 | 0 |
| 2000 | 611 | 0 |
| 2001 | 579 | 138 |
| 2002 | 581 | 586 |
| 2003 | 551 | 1090 |
| 2004 | 475 | 936 |
| 2005 | 415 | 682 |
| 2006 | 484 | 653 |
| 2007 | 475 | 681 |
| 2008 | 402 | 676 |
| 2009 | 411 | 733 |
| 2010 | 559 | 1006 |
| 2011 | 606 | 897 |
| 2012 | 589 | 886 |
| 2013 | 726 | 1011 |
| 2014 | 825 | 1062 |
| 2015 | 852 | 1019 |
| 2016 | 1111 | 974 |
| 2017 | 862 | 895 |
| 2018 | 792 | 868 |
| 2019 | 781 | 903 |
| 2020 | 723 | 817 |
| 2021 | 701 | 855 |
| 2022 | 520 | 825 |
| 2023 | 563 | 963 |
| 2024 | 533 | 571 |
| 2025 | 522 | 469 |
| 2026 | 276 | 222 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Heterogeneous catalyst for transesterification and method of preparing same6 Oct 2026US RE51,051 E1Crystaphase Products, Inc.
- Solid supports and phosphoramidite building blocks for oligonucleotide conjugates15 Sep 2026US 12,735,387 B2AM Chemicals LLC
- Catalyst for hydrogen peroxide synthesis and regeneration25 Aug 2026US 12,714,987 B2Heesung Catalysts Corporation
- Palladium-based membrane25 Aug 2026US 12,715,767 B2National University of Singapore
- Aromatic ring-lactam compound, preparation method therefor and use thereof25 Aug 2026US 12,715,871 B2Shanghai Ringene Biopharma Co., Ltd.
- Light-emitting element, display device, electronic device, and lighting device1 Oct 2026US 2026/0305164 A1Semiconductor Energy Laboratory Co.Ltd.
- 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
- Process for partial delignification and filling of a lignocellulosic material, and composite material structure able to be obtained by this process27 Aug 2026US 2026/0249512 A1SAS Woodoo
- Synthesis of vinyl cyclobutyl intermediates27 Aug 2026US 2026/0250233 A1Amgen Inc.
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