H01J 2223/00
Details of transit-time tubes of the types covered by group h01j2225/00
Official title: Details of transit-time tubes of the types covered by group H01J2225/00
H01J2223/00 (Details of transit-time tubes of the types covered by group h01j2225/00) appears on 54 US grants and 22 published applications in this corpus.
Search patents in H01J- Granted patents
- 54
- Published applications
- 22
- Assignees
- 41
- Inventors
- 143
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 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 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 8 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 1 |
| 2002 | 10 | 6 |
| 2003 | 5 | 2 |
| 2004 | 4 | 0 |
| 2005 | 1 | 1 |
| 2006 | 1 | 4 |
| 2007 | 2 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 1 | 0 |
| 2021 | 1 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 1 |
| 2024 | 0 | 1 |
| 2025 | 0 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H01J 2223/02ElectrodesIndexing code31
- H01J 2223/16Circuit elements, having distributed capacitance and inductance, structurally associated with the tubeIndexing code9
- H01J 2223/14Leading-in arrangementsIndexing code7
- H01J 2223/36Coupling devices having distributed capacitance and inductance, structurally associated with the tubeIndexing code7
- H01J 2223/12VesselsIndexing code3
- H01J 2223/34Circuit arrangements not adapted to a particular application of the tube andIndexing code3
- H01J 2223/005Cooling methods or arrangementsIndexing code1
Recent patents
- Klystrons and medical electron linear accelerators8 Sep 2026US 12,731,751 B2Shanghai United Imaging Healthcare Co., Ltd.
- Precision alignment system for millimeter wave sources2 May 2023US 11,640,893 B1Dymenso LLC
- Time-of-flight mass spectrometry device7 Dec 2021US 11,195,707 B2Shimadzu Corporation
- Energy supply unit for a traveling wave tube15 Sep 2020US 10,778,166 B2Tesat-Spacecom GmbH & Co. KG
- Electron beam modulator based on a nonlinear transmission line23 Oct 2018US 10,109,447 B1The United States of America as represented by the Secretary of the Air Force
- Tungsten alloy wire, preparation method therefor and use thereof, and tungsten carbide alloy filament13 Aug 2026US 2026/0234761 A1Xiamen Honglu Tungsten Molybdenum Industry Co., Ltd.
- Klystrons and medical electron linear accelerators10 Oct 2024US 2024/0339281 A1Shanghai United Imaging Healthcare Co., Ltd.
- Precision Alignment System for Millimeter Wave Sources18 May 2023US 2023/0154717 A1Dymenso LLC
- Time-of-flight mass spectrometry device1 Jul 2021US 2021/0202224 A1Shimadzu Corporation
- Energy Supply Unit For A Traveling Wave Tube18 May 2017US 2017/0141745 A1Tesat-Spacecom GmbH & Co. KG
Most cited
By later US patents
- Article comprising aligned nanowires172US 6,741,019 B1Agere Systems Inc. · 2004
- Process for fabricating article comprising aligned truncated carbon nanotubes139US 6,283,812 B1Agere Systems Guardian Corp. · 2001
- Standing wave particle beam accelerator with switchable beam energy88US 6,366,021 B1Varian Medical Systems, Inc. · 2002
- High frequency attenuator using ferrite beads35US 4,146,854 ATDK Electronics Co., Ltd. · 1979
- Field-emission cathode capable of forming an electron beam having a high current density and a low ripple25US 5,929,557 ANEC Corporation · 1999