G01G 21/30
Means for preventing contamination by dust
G01G21/30 (Means for preventing contamination by dust) appears on 76 US grants and 67 published applications in this corpus.
Search patents in G01G- Granted patents
- 76
- Published applications
- 67
- Assignees
- 52
- Inventors
- 146
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 6 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 2 |
| 2004 | 0 | 0 |
| 2005 | 2 | 1 |
| 2006 | 1 | 1 |
| 2007 | 0 | 3 |
| 2008 | 1 | 4 |
| 2009 | 4 | 2 |
| 2010 | 3 | 4 |
| 2011 | 2 | 4 |
| 2012 | 3 | 5 |
| 2013 | 4 | 3 |
| 2014 | 2 | 2 |
| 2015 | 4 | 1 |
| 2016 | 3 | 5 |
| 2017 | 1 | 2 |
| 2018 | 5 | 8 |
| 2019 | 3 | 1 |
| 2020 | 3 | 1 |
| 2021 | 2 | 4 |
| 2022 | 2 | 2 |
| 2023 | 1 | 4 |
| 2024 | 2 | 3 |
| 2025 | 3 | 4 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Draft shield comprising a swiveling door5 May 2026US 12,618,706 B2Mettler-Toledo AG
- Seal structure and weighing machine comprising same8 Jul 2025US 12,351,395 B2Yamato Scale Company, Limited
- Windshield for defining a weighing chamber of a balance27 May 2025US 12,313,446 B2A&D Company, Limited
- Windshield for balance22 Apr 2025US 12,281,930 B2A&D Company, Limited
- Windshield for balance19 Nov 2024US 12,146,783 B2A&D Company, Limited
- Inflatable seal5 Feb 2026US 2026/0036463 A1
- Weighing device for process environments with strong pressure and/or temperature variations11 Dec 2025US 2025/0377236 A1Phizero S.R.L.
- Waterproof mechanism for weighing apparatus20 Nov 2025US 2025/0354855 A1A&D Company, Limited
- Electronic balance2 Oct 2025US 2025/0305867 A1A&D Company, Limited
- Animal Weighing Apparatus30 Jan 2025US 2025/0035480 A1Datamars SA
Most cited
By later US patents
- Method of monitoring and/or determining the condition of a force-measuring device, and force-measuring device566US 7,497,137 B2Mettler-Toledo AG · 2009
- POS-based code symbol reading system with integrated scale base and system housing having an improved produce weight capturing surface design509US 8,789,757 B2Metrologic Instruments, Inc. · 2014
- Automatic sealing arrangement for weigh scale for food processing apparatus32US 7,411,137 B2Formax, Inc. · 2008
- Balance with wind guard30US 4,798,250 ASartorius AG · 1989
- Enclosed moment-insensitive load cell28US 4,957,177 AToledo Scale Corporation · 1990