B64D 31/16
Power plant control systems: for electric power plants
Official title: for electric power plants
B64D31/16 (Power plant control systems: for electric power plants) appears on 955 US grants and 1,283 published applications in this corpus.
Search patents in B64D- Granted patents
- 955
- Published applications
- 1,283
- Assignees
- 229
- Inventors
- 1,568
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 2 | 1 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 1 | 5 |
| 2010 | 1 | 8 |
| 2011 | 0 | 2 |
| 2012 | 5 | 4 |
| 2013 | 1 | 8 |
| 2014 | 6 | 17 |
| 2015 | 13 | 8 |
| 2016 | 13 | 21 |
| 2017 | 14 | 19 |
| 2018 | 18 | 55 |
| 2019 | 32 | 46 |
| 2020 | 50 | 124 |
| 2021 | 57 | 118 |
| 2022 | 95 | 175 |
| 2023 | 188 | 209 |
| 2024 | 175 | 154 |
| 2025 | 169 | 151 |
| 2026 | 113 | 154 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Multicore hybrid-electric powertrain controller6 Oct 2026US 12,752,769 B2Pratt & Whitney Canada Corp.
- Controller of an electrical power supply circuit for electrical power supply of a superconducting motor, superconducting electrical power supply system of a motor, and aircraft comprising such a system6 Oct 2026US 12,756,342 B2Airbus SAS
- Anti-stall system with a fuel cell22 Sep 2026US 12,742,425 B2General Electric Company
- Aircraft propulsion system with hybrid-electric powerplant15 Sep 2026US 12,735,190 B1Rtx Corporation
- Aircraft hybrid electric propulsion and attitude controller15 Sep 2026US 12,735,191 B2Rtx Corporation
- System and method of rotor management8 Oct 2026US 2026/0307786 A1Beta Air, LLC
- Hybrid propulsion system cockpit interface8 Oct 2026US 2026/0310252 A1Rolls-Royce Deutschland Ltd & Co KG
- Systems and methods for rotor assemblies and manufacturing thereof1 Oct 2026US 2026/0296634 A1Archer Aviation Inc.
- Flying object1 Oct 2026US 2026/0296641 A1Honda Motor Co., Ltd.
- Control device, moving object, control method, and storage medium1 Oct 2026US 2026/0296662 A1Honda Motor Co., Ltd.
Most cited
By later US patents
- Personal hoverplane with four tiltmotors216US 6,655,631 B22003
- Personal aircraft82US 8,485,464 B2Zee.Aero Inc. · 2013
- Aircraft propulsion system using air liquefaction and storage72US 5,106,035 AAurora Flight Sciences Corporation · 1992
- Vertical takeoff and landing aircraft66US 9,085,355 B2DeLorean Aerospace, LLC · 2015
- Special personal electric helicopter device with integral wind turbine recharging capability65US 9,440,736 B22016