G06F 2207/4828
Negative resistance devices
Official title: Negative resistance devices, e.g. tunnel diodes, gunn effect devices
G06F2207/4828 (Negative resistance devices) appears on 40 US grants and 37 published applications in this corpus.
Search patents in G06F- Granted patents
- 40
- Published applications
- 37
- Assignees
- 24
- Inventors
- 92
- Latest grant
- 10 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 2 | 6 |
| 2019 | 6 | 6 |
| 2020 | 3 | 5 |
| 2021 | 5 | 11 |
| 2022 | 8 | 6 |
| 2023 | 5 | 1 |
| 2024 | 3 | 1 |
| 2025 | 2 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Neural network apparatus23 Sep 2025US 12,423,563 B2Samsung Electronics Co., Ltd.
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- Product-sum operation device, logical calculation device, neuromorphic device, and multiply-accumulate method4 Jun 2024US 12,001,811 B2TDK Corporation
- Scalar product circuit, and method for computing binary scalar products of an input vector and weight vectors1 Feb 2024US 2024/0036825 A1
- Apparatus and method with in-memory computing23 Feb 2023US 2023/0053948 A1Research & Business Foundation Sungkyunkwan University
- Ternary in-memory accelerator30 Jun 2022US 2022/0206751 A1Purdue Research Foundation
- Multiply and accumulate calculation device, neuromorphic device, and multiply and accumulate calculation method5 May 2022US 2022/0138441 A1TDK Corporation
- Neural network apparatus14 Apr 2022US 2022/0114427 A1Samsung Electronics Co., Ltd.
Most cited
By later US patents
- Multiply-accumulate circuits30US 10,180,820 B2HEWLETT PACKARD ENTERPRlSE DEVELOPMENT LP · 2019
- Analog sub-matrix computing from input matrixes9US 10,496,855 B2Hewlett Packard Enterprise Development LP · 2019
- Memory processing unit9US 10,943,652 B2The Regents of the University of Michigan · 2021
- Multiple-valued current mode adder implemented by transistor having negative transconductance7US 4,982,356 ANEC Corporation · 1991
- High speed arithmetic and logic generator with reduced complexity using negative resistance7US 5,265,044 A1993