B05B 5/025
Discharge apparatus
Official title: Discharge apparatus, e.g. electrostatic spray guns
B05B5/025 (Discharge apparatus) appears on 1,802 US grants and 1,571 published applications in this corpus.
Search patents in B05B- Granted patents
- 1,802
- Published applications
- 1,571
- Assignees
- 764
- Inventors
- 3,219
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 16 | 0 |
| 1977 | 15 | 0 |
| 1978 | 24 | 0 |
| 1979 | 14 | 0 |
| 1980 | 26 | 0 |
| 1981 | 18 | 0 |
| 1982 | 32 | 0 |
| 1983 | 33 | 0 |
| 1984 | 20 | 0 |
| 1985 | 33 | 0 |
| 1986 | 25 | 0 |
| 1987 | 32 | 0 |
| 1988 | 41 | 0 |
| 1989 | 36 | 0 |
| 1990 | 25 | 0 |
| 1991 | 27 | 0 |
| 1992 | 26 | 0 |
| 1993 | 24 | 0 |
| 1994 | 24 | 0 |
| 1995 | 23 | 0 |
| 1996 | 24 | 0 |
| 1997 | 25 | 0 |
| 1998 | 41 | 0 |
| 1999 | 47 | 0 |
| 2000 | 38 | 0 |
| 2001 | 36 | 9 |
| 2002 | 33 | 38 |
| 2003 | 28 | 51 |
| 2004 | 38 | 44 |
| 2005 | 29 | 52 |
| 2006 | 18 | 49 |
| 2007 | 22 | 53 |
| 2008 | 24 | 46 |
| 2009 | 22 | 72 |
| 2010 | 33 | 70 |
| 2011 | 48 | 56 |
| 2012 | 43 | 58 |
| 2013 | 47 | 65 |
| 2014 | 49 | 68 |
| 2015 | 57 | 74 |
| 2016 | 47 | 72 |
| 2017 | 55 | 74 |
| 2018 | 52 | 63 |
| 2019 | 63 | 74 |
| 2020 | 63 | 76 |
| 2021 | 57 | 85 |
| 2022 | 56 | 88 |
| 2023 | 43 | 72 |
| 2024 | 55 | 73 |
| 2025 | 66 | 56 |
| 2026 | 29 | 33 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B05B 5/053Arrangements for supplying power579
- B05B 5/03Characterised by the use of gas554
- B05B 5/04Characterised by having rotary outlet or deflecting elements , i.e. spraying being463
- B05B 5/0255Spraying and depositing by electrostatic forces only358
- B05B 5/043Using induction-charging194
- B05B 5/047Using tribo-charging118
- B05B 5/057Arrangements for discharging liquids or other fluent material without using a gun108
- B05B 5/035Characterised by gasless spraying53
Recent patents
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- Spray ionization device14 Jul 2026US 12,678,810 B2National Institute of Advanced Industrial Science and Technology
- Robot monitoring device for coating machine, control device for robot system, and control method for robot system1 Oct 2026US 2026/0295617 A1Kawasaki Jukogyo Kabushiki Kaisha
- Particles comprising a therapeutic or diagnostic agent and suspensions and methods of use thereof10 Sep 2026US 2026/0263367 A1Halozyme Hypercon, Inc.
- Liquid dispensing system with internal recirculation3 Sep 2026US 2026/0257233 A1
- Electrostatic coating system20 Aug 2026US 2026/0241397 A1AM Batteries, Inc.
- Drive turbine for a rotary atomizer13 Aug 2026US 2026/0233239 A1
Most cited
By later US patents
- Fibrillar product of electrostatically spun organic material222US 4,043,331 AImperial Chemical Industries PLC · 1977
- Insulated needle for forming an electrospray201US 5,223,226 AMillipore Corporation · 1993
- Nebulizer device201US 5,511,726 ABattelle Memorial Institute · 1996
- Coating medical devices199US 7,247,338 B2Regents of the University of Minnesota · 2007
- High mass throughput particle generation using multiple nozzle spraying198US 6,764,720 B2Regents of the University of Minnesota · 2004