H01B 3/20
Liquids
Official title: liquids, e.g. oils (silicone oils H01B3/46)
H01B3/20 (Liquids) appears on 462 US grants and 339 published applications in this corpus.
Search patents in H01B- Granted patents
- 462
- Published applications
- 339
- Assignees
- 219
- Inventors
- 841
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 14 | 0 |
| 1978 | 15 | 0 |
| 1979 | 9 | 0 |
| 1980 | 13 | 0 |
| 1981 | 17 | 0 |
| 1982 | 20 | 0 |
| 1983 | 14 | 0 |
| 1984 | 10 | 0 |
| 1985 | 15 | 0 |
| 1986 | 13 | 0 |
| 1987 | 7 | 0 |
| 1988 | 9 | 0 |
| 1989 | 5 | 0 |
| 1990 | 6 | 0 |
| 1991 | 5 | 0 |
| 1992 | 7 | 0 |
| 1993 | 2 | 0 |
| 1994 | 4 | 0 |
| 1995 | 4 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 4 | 0 |
| 1999 | 6 | 0 |
| 2000 | 4 | 0 |
| 2001 | 9 | 1 |
| 2002 | 8 | 5 |
| 2003 | 5 | 2 |
| 2004 | 3 | 5 |
| 2005 | 2 | 2 |
| 2006 | 1 | 15 |
| 2007 | 2 | 10 |
| 2008 | 4 | 2 |
| 2009 | 6 | 13 |
| 2010 | 9 | 12 |
| 2011 | 7 | 9 |
| 2012 | 6 | 16 |
| 2013 | 13 | 21 |
| 2014 | 15 | 35 |
| 2015 | 15 | 21 |
| 2016 | 14 | 19 |
| 2017 | 17 | 15 |
| 2018 | 9 | 19 |
| 2019 | 16 | 10 |
| 2020 | 19 | 20 |
| 2021 | 11 | 15 |
| 2022 | 15 | 15 |
| 2023 | 12 | 10 |
| 2024 | 7 | 17 |
| 2025 | 9 | 25 |
| 2026 | 8 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Chlorinated fluoroaromatics and methods of using same6 Oct 2026US 12,753,140 B23M Innovative Properties Company
- Compositions and uses of trans-1,1,1,4,4,4-hexafluoro-2-butene and 1,1-difluoroethane (R-152A)15 Sep 2026US 12,734,388 B2The Chemours Company Fc, LLC
- Dielectric fluid compositions comprising low viscosity monoesters with improved low temperature performance14 Jul 2026US 12,679,799 B2Evonik Operations GmbH
- Bushing comprising a condenser body and electrical facility with bushing30 Jun 2026US 12,671,022 B2Hitachi Energy Ltd
- Shipping container-mountable system for making bio-sourced oil dielectric fluids19 May 2026US 12,629,642 B2Cargill, Incorporated
- Electrical apparatus comprising at least one gelled material24 Sep 2026US 2026/0290681 A1Arkema France
- Paraffinic products, a method for producing paraffinic products and a use of paraffinic products4 Jun 2026US 2026/0152697 A1Neste Oyj
- Method for producing renewable fuel and base oil9 Apr 2026US 2026/0098219 A1Neste Oyj
- Power cable26 Feb 2026US 2026/0058032 A1NKT HV Cables AB
- Leak monitoring for high voltage cable terminations12 Feb 2026US 2026/0045384 A1Nexans
Most cited
By later US patents
- Computing infrastructure672US 8,706,914 B22014
- Filled cables421US 4,259,540 ABell Telephone Laboratories, Incorporated · 1981
- Electrical insulating oil and oil-filled electrical appliances166US 4,618,914 ANippon Petrochemicals Company, Limited · 1986
- Computing infrastructure92US 8,706,915 B22014
- Computing infrastructure81US 9,143,392 B22015