B67D 7/64
Of piston type
Official title: of piston type
B67D7/64 (Of piston type) appears on 108 US grants and 85 published applications in this corpus.
Search patents in B67D- Granted patents
- 108
- Published applications
- 85
- Assignees
- 80
- Inventors
- 197
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 5 | 0 |
| 1987 | 4 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 7 | 0 |
| 2000 | 6 | 0 |
| 2001 | 4 | 1 |
| 2002 | 1 | 1 |
| 2003 | 1 | 2 |
| 2004 | 3 | 3 |
| 2005 | 1 | 1 |
| 2006 | 0 | 2 |
| 2007 | 0 | 2 |
| 2008 | 0 | 2 |
| 2009 | 1 | 4 |
| 2010 | 2 | 2 |
| 2011 | 1 | 2 |
| 2012 | 3 | 5 |
| 2013 | 4 | 1 |
| 2014 | 2 | 2 |
| 2015 | 2 | 3 |
| 2016 | 1 | 4 |
| 2017 | 3 | 1 |
| 2018 | 1 | 5 |
| 2019 | 3 | 5 |
| 2020 | 1 | 7 |
| 2021 | 9 | 5 |
| 2022 | 3 | 5 |
| 2023 | 5 | 5 |
| 2024 | 4 | 4 |
| 2025 | 2 | 10 |
| 2026 | 4 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Fluid compression apparatus and filling station8 Sep 2026US 12,729,104 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Feeding device for flowable material1 Sep 2026US 12,722,834 B2Toyota Jidosha Kabushiki Kaisha
- Vapor displacement refueling including data communications, zero gravity and chemical looping combustion system25 Aug 2026US 12,718,682 B2
- Emptying system for emptying paste-like material from barrel-type containers13 Jan 2026US 12,522,453 B2Netzsch Pumpen & Systeme GmbH (DE)
- Apparatus for conveying viscous material2 Sep 2025US 12,403,499 B2Atlas Copco IAS GmbH
- Vapor Displacement Refueling Including Onboard Internally Recirculating Chemical Looping Combustion System4 Jun 2026US 2026/0155037 A1
- Drum Emptying Rotating Station11 Dec 2025US 2025/0376368 A1Unibloc Hygienic Technologies UK, Ltd.
- Cryogenic pump for hydrogen fueling station with long stroke16 Oct 2025US 2025/0320109 A1Bosch Rexroth AG
- Cryogenic pump with inverse orientation for hydrogen fueling station16 Oct 2025US 2025/0320110 A1Bosch Rexroth AG
- Apparatus for improved transfer and storage of viscous fluids17 Jul 2025US 2025/0230033 A1Limworks, LLC
Most cited
By later US patents
- Hot melt adhesive pumping apparatus having pressure-sensitive feedback control51US 4,090,640 A1978
- Hot melt dispenser with removeable pump in follower35US 4,073,409 AFluid Kinetics, Inc. · 1978
- Hot melt dispenser32US 4,227,069 ANordson Corporation · 1980
- Reciprocating pump with linear displacement sensor31US 6,168,387 AIngersoll-Rand Company · 2001
- Hot melt dispensing apparatus30US 3,976,229 APyles Industries, Inc. · 1976