G01B 3/563
Protractors
Official title: {Protractors (for use in geodesy G01C1/00; protractor heads for drawing machines B43L13/08)}
G01B3/563 (Protractors) appears on 146 US grants and 106 published applications in this corpus.
Search patents in G01B- Granted patents
- 146
- Published applications
- 106
- Assignees
- 33
- Inventors
- 197
- Latest grant
- 30 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 4 | 0 |
| 1987 | 0 | 0 |
| 1988 | 5 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 3 | 3 |
| 2003 | 3 | 4 |
| 2004 | 1 | 3 |
| 2005 | 2 | 4 |
| 2006 | 2 | 6 |
| 2007 | 10 | 4 |
| 2008 | 3 | 5 |
| 2009 | 5 | 5 |
| 2010 | 4 | 6 |
| 2011 | 7 | 4 |
| 2012 | 8 | 6 |
| 2013 | 5 | 7 |
| 2014 | 3 | 5 |
| 2015 | 6 | 4 |
| 2016 | 5 | 9 |
| 2017 | 3 | 7 |
| 2018 | 3 | 3 |
| 2019 | 11 | 2 |
| 2020 | 3 | 8 |
| 2021 | 1 | 2 |
| 2022 | 5 | 4 |
| 2023 | 2 | 2 |
| 2024 | 6 | 2 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
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Most cited
By later US patents
- Application and network-based long poll request detection and cacheability assessment therefor104US 8,166,164 B1Seven Networks, LLC · 2012
- Method and apparatus for determining acetabular component positioning88US 8,267,938 B22012
- Application and network-based long poll request detection and cacheability assessment therefor73US 8,291,076 B2Seven Networks, LLC · 2012
- Combined level and protractor with calibration features33US 4,481,720 A1984
- Angle indicator for capsular bag size measurement32US 7,993,398 B2Abbott Medical Optics Inc. · 2011