G06F 7/4812
Complex multiplication
Official title: {Complex multiplication}
G06F7/4812 (Complex multiplication) appears on 86 US grants and 70 published applications in this corpus.
Search patents in G06F- Granted patents
- 86
- Published applications
- 70
- Assignees
- 48
- Inventors
- 155
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 5 | 2 |
| 2003 | 3 | 4 |
| 2004 | 1 | 5 |
| 2005 | 0 | 3 |
| 2006 | 1 | 2 |
| 2007 | 2 | 2 |
| 2008 | 2 | 0 |
| 2009 | 3 | 3 |
| 2010 | 3 | 2 |
| 2011 | 1 | 1 |
| 2012 | 3 | 6 |
| 2013 | 4 | 8 |
| 2014 | 4 | 1 |
| 2015 | 6 | 0 |
| 2016 | 1 | 4 |
| 2017 | 3 | 1 |
| 2018 | 2 | 1 |
| 2019 | 2 | 7 |
| 2020 | 5 | 4 |
| 2021 | 2 | 1 |
| 2022 | 3 | 8 |
| 2023 | 3 | 2 |
| 2024 | 2 | 3 |
| 2025 | 2 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Complex multiplication circuit16 Jun 2026US 12,657,004 B2Mitsubishi Electric Corporation
- Apparatus and method for complex multiplication2 Dec 2025US 12,487,820 B1Intel Corporation
- Dot product array17 Jun 2025US 12,333,269 B2Arm Limited
- Apparatus and method for complex multiplication16 Apr 2024US 11,960,884 B2Intel Corporation
- Information processing apparatus, secure computation method, and program6 Feb 2024US 11,895,230 B2NEC Corporation
- Efficient fault countermeasure through polynomial evaluation20 Jun 2024US 2024/0202273 A1NXP B. V.
- Generation of irrelevancy scores for input text23 May 2024US 2024/0169033 A1Vertex, Inc.
- Complex number matrix multiplication processors, methods, systems, and instructions16 May 2024US 2024/0160443 A1Intel Corporation
- Dot product array16 Mar 2023US 2023/0080578 A1Arm Limited
- Complex multiplication circuit26 Jan 2023US 2023/0029006 A1Mitsubishi Electric Corporation
Most cited
By later US patents
- Method for performing multiply-add operations on packed data90US 6,385,634 B1Intel Corporation · 2002
- Method and apparatus for storing complex numbers to allow for efficient complex multiplication operations and performing such complex multiplication operations85US 5,936,872 AIntel Corporation · 1999
- Cordic complex multiplier82US 4,896,287 AGeneral Electric Company · 1990
- Method and apparatus for multiplying and accumulating complex numbers in a digital filter66US 6,058,408 AIntel Corporation · 2000
- Method and apparatus for performing multiply-add operations on packed data65US 7,395,298 B2Intel Corporation · 2008