H01H 1/00
Contacts
Official title: Contacts (liquid contacts H01H29/04)
H01H1/00 (Contacts) appears on 6,769 US grants and 4,793 published applications in this corpus.
Search patents in H01H- Granted patents
- 6,769
- Published applications
- 4,793
- Assignees
- 2,060
- Inventors
- 11,101
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 86 | 0 |
| 1977 | 81 | 0 |
| 1978 | 84 | 0 |
| 1979 | 60 | 0 |
| 1980 | 57 | 0 |
| 1981 | 72 | 0 |
| 1982 | 75 | 0 |
| 1983 | 79 | 0 |
| 1984 | 92 | 0 |
| 1985 | 105 | 0 |
| 1986 | 86 | 0 |
| 1987 | 129 | 0 |
| 1988 | 88 | 0 |
| 1989 | 108 | 0 |
| 1990 | 92 | 0 |
| 1991 | 101 | 0 |
| 1992 | 69 | 0 |
| 1993 | 89 | 0 |
| 1994 | 107 | 0 |
| 1995 | 90 | 0 |
| 1996 | 95 | 0 |
| 1997 | 97 | 0 |
| 1998 | 133 | 0 |
| 1999 | 144 | 0 |
| 2000 | 150 | 0 |
| 2001 | 190 | 48 |
| 2002 | 162 | 145 |
| 2003 | 158 | 163 |
| 2004 | 198 | 210 |
| 2005 | 155 | 205 |
| 2006 | 170 | 163 |
| 2007 | 135 | 152 |
| 2008 | 102 | 168 |
| 2009 | 121 | 177 |
| 2010 | 146 | 160 |
| 2011 | 125 | 169 |
| 2012 | 154 | 171 |
| 2013 | 150 | 239 |
| 2014 | 184 | 230 |
| 2015 | 223 | 240 |
| 2016 | 208 | 227 |
| 2017 | 245 | 201 |
| 2018 | 224 | 223 |
| 2019 | 234 | 216 |
| 2020 | 203 | 229 |
| 2021 | 189 | 203 |
| 2022 | 183 | 199 |
| 2023 | 167 | 196 |
| 2024 | 151 | 184 |
| 2025 | 145 | 153 |
| 2026 | 78 | 122 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H01H 1/12Contacts: characterised by the manner in which co-operating contacts engage2,526
- H01H 1/58Electric connections to or between contacts1,427
- H01H 1/0036Switches making use of microelectromechanical systems [mems]1,014
- H01H 1/02Contacts: characterised by the material thereof884
- H01H 1/50Means for increasing contact pressure, preventing vibration of contacts, holding contacts together629
- H01H 1/06Contacts: characterised by the shape or structure of the contact-making surface289
- H01H 1/0015Means for testing or for inspecting contacts282
- H01H 1/0094Switches making use of nanoelectromechanical systems [nems]193
All 14 subgroupsShow fewer
- H01H 1/64Protective enclosures, baffle plates, or screens for contacts184
- H01H 1/60Auxiliary means structurally associated with the switch for cleaning or lubricating contact-making144
- H01H 1/62Heating or cooling of contacts97
- H01H 2001/0005Redundant contact pairs in one switch for safety reasonsIndexing code82
- H01H 1/56Contact arrangements for providing make-before-break operation18
- H01H 2001/001Providing easy replacement of contactsIndexing code18
Recent patents
- Sealed electrical devices6 Oct 2026US 12,755,917 B2Sensata Technologies, Inc.
- Electrical apparatus6 Oct 2026US 12,757,365 B2Denso Corporation
- Electrical contact system with liquid metal layer and diffusion barrier29 Sep 2026US 12,749,631 B2Eaton Intelligent Power Limited
- Multi-terminal tracer wire access point29 Sep 2026US 12,749,632 B2Copperweld Group, Inc.
- Device for limiting movement of movable part in electrical equipment29 Sep 2026US 12,749,633 B2Schneider Electric Industries SAS
- Capacitive rf microswitch for high-power applications8 Oct 2026US 2026/0311937 A1
- Switch pole for electrical systems8 Oct 2026US 2026/0311938 A1
- Switch pole for electrical systems8 Oct 2026US 2026/0311939 A1
- Modular rf power switch matrix8 Oct 2026US 2026/0312268 A1
- Failsafe ohmic-capacitive membrane actuator-based radio frequency switch24 Sep 2026US 2026/0290713 A1Dell Products L. P.
Most cited
By later US patents
- System for generation of user profiles for a system for customized electronic identification of desirable objects2,365US 5,754,939 A1998
- Surgical generator for ultrasonic and electrosurgical devices1,826US 9,168,054 B2Ethicon Endo-Surgery, Inc. · 2015
- System and method for scheduling broadcast of and access to video programs and other data using customer profiles1,609US 5,758,257 A1998
- Switch and connector1,605US 5,541,376 AValleylab, Inc. · 1996
- Toggle switch with shaped wire spring contact1,480US 4,272,662 AC&K Components S.A.S. · 1981