G01G 21/26
Counterweights
Official title: Counterweights; Poise-weights; Sets of weights; Holders for the reception of weights
G01G21/26 (Counterweights) appears on 32 US grants and 25 published applications in this corpus.
Search patents in G01G- Granted patents
- 32
- Published applications
- 25
- Assignees
- 25
- Inventors
- 63
- Latest grant
- 10 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 2 | 1 |
| 2004 | 0 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 1 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 2 | 0 |
| 2013 | 0 | 1 |
| 2014 | 1 | 4 |
| 2015 | 0 | 3 |
| 2016 | 2 | 0 |
| 2017 | 2 | 1 |
| 2018 | 0 | 1 |
| 2019 | 2 | 0 |
| 2020 | 2 | 2 |
| 2021 | 2 | 0 |
| 2022 | 1 | 3 |
| 2023 | 0 | 2 |
| 2024 | 2 | 1 |
| 2025 | 1 | 2 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Dual-truncated wheel kibble balance and determining absolute mass10 Feb 2026US 12,546,645 B2Government of the United States of America, AS Represented By the Secretary of Commerce
- Test body system22 Jul 2025US 12,366,477 B2Wipotec GmbH
- Scale calibration device and method of use16 Jul 2024US 12,038,319 B2Pelstar, LLC
- Deadweight loading apparatus, system, and method for calibrating a testing device18 Jun 2024US 12,013,281 B2The Boeing Company
- Calibration and support platform for calibration weights on a conveyor and metering device15 Mar 2022US 11,274,960 B2Schenck Process Europe GmbH
- Balance having a magazine and a load-change device5 Jun 2025US 2025/0180399 A1Sartorius Lab Instruments GmbH & Co. KG
- Weighing device27 Mar 2025US 2025/0102349 A1Metryx Limited
- Weighing device, system comprising the weighing device, and method for determining a weight5 Sep 2024US 2024/0295431 A1
- Dual-truncated wheel kibble balance and determining absolute mass14 Dec 2023US 2023/0400346 A1Government of the United States of America, AS Represented By the Secretary of Commerce
- Prüfkörpersystem13 Jul 2023US 2023/0221171 A1Wipotec GmbH
Most cited
By later US patents
- Apparatus for depositing and lifting off of a reference weight in an electronic scale17US 4,766,965 AMettler Instrumente AG · 1988
- Fluid measurement device12US 4,095,658 AIso AB, Inc. · 1978
- Plastic encased weights12US 6,583,370 B2Safe-T Products, Inc. · 2003
- Scale testing cart11US 4,249,633 A1981
- Weight cart8US 4,406,338 A1983