G01N 21/553
And using surface plasmons
Official title: {and using surface plasmons (fluorescence excitation G01N21/648; enhanced Raman G01N21/658)}
G01N21/553 (And using surface plasmons) appears on 1,328 US grants and 1,841 published applications in this corpus.
Search patents in G01N- Granted patents
- 1,328
- Published applications
- 1,841
- Assignees
- 814
- Inventors
- 3,565
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 1 | 0 |
| 1991 | 7 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 9 | 0 |
| 1995 | 4 | 0 |
| 1996 | 9 | 0 |
| 1997 | 9 | 0 |
| 1998 | 9 | 0 |
| 1999 | 20 | 0 |
| 2000 | 8 | 0 |
| 2001 | 14 | 9 |
| 2002 | 17 | 29 |
| 2003 | 21 | 45 |
| 2004 | 27 | 38 |
| 2005 | 22 | 61 |
| 2006 | 30 | 100 |
| 2007 | 39 | 87 |
| 2008 | 51 | 67 |
| 2009 | 47 | 90 |
| 2010 | 65 | 107 |
| 2011 | 65 | 104 |
| 2012 | 68 | 96 |
| 2013 | 63 | 90 |
| 2014 | 81 | 100 |
| 2015 | 55 | 68 |
| 2016 | 62 | 77 |
| 2017 | 59 | 78 |
| 2018 | 45 | 84 |
| 2019 | 69 | 88 |
| 2020 | 75 | 69 |
| 2021 | 66 | 76 |
| 2022 | 49 | 73 |
| 2023 | 42 | 63 |
| 2024 | 35 | 61 |
| 2025 | 39 | 43 |
| 2026 | 37 | 38 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Plasmonic hydrogen detection29 Sep 2026US 12,748,048 B2King's College London
- Plasmonic device29 Sep 2026US 12,748,049 B2Ostia Technologies Limited
- Fiber optic sensing apparatus and system29 Sep 2026US 12,748,257 B2Jinan University
- Method and system for evaluation of an interaction between an analyte and a ligand using a biosensor22 Sep 2026US 12,742,776 B2Cytiva Sweden AB
- Conjugated composed of membrane-targeting peptides for extracellular vesicles isolation, analysis and their integration thereof15 Sep 2026US 12,736,530 B2Tides Bio S.R.L.
- Flexible surface plasmon resonance (spr) sensor chip and methods for making and using the sensor3 Sep 2026US 2026/0259138 A1Oregon State University
- Devices, systems, and methods for chiral sensing27 Aug 2026US 2026/0251568 A1Board of Regents, The University of Texas System
- Substrate, analysis method, apparatus, and manufacturing method27 Aug 2026US 2026/0251569 A1Canon Kabushiki Kaisha
- Nanoplasmonic sensor27 Aug 2026US 2026/0251644 A1NanoPath, Inc.
- A multi-functional sensor for molecular spectroscopy20 Aug 2026US 2026/0243687 A1Agency for Science, Technology and Research
Most cited
By later US patents
- Optical biosensor system268US 5,313,264 APharmacia Biosensor AB · 1994
- Surface plasmon resonance sensor unit and its use in biosensor systems232US 5,492,840 APharmacia Biosensor AB · 1996
- Plasmon resonant particles, methods and apparatus211US 6,180,415 B2The Regents of the University of California · 2001
- Surface plasmon resonance sensor and methods for the utilization thereof194US 5,485,277 APhysical Optics Corporation · 1996
- Optical assay technique193US 4,931,384 AAres-Serono N.V. · 1990