G01B 5/22
Spherometers
G01B5/22 (Spherometers) appears on 8 US grants and 2 published applications in this corpus.
Search patents in G01B- Granted patents
- 8
- Published applications
- 2
- Assignees
- 7
- Inventors
- 17
- Latest grant
- 29 Mar 2016
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Spherical-form measuring apparatus29 Mar 2016US 9,297,631 B2Mitutoyo Corporation
- Vacuum-actuated spherometer2 Jun 2009US 7,540,096 B2Hardin Optical Co.
- Surface shape evaluation method and device for spherical body24 Sep 2002US 6,453,729 B1Nsk Ltd.
- Golf ball out-of-round indicator7 Jul 1998US 5,774,997 APerformance Dynamics, Inc.
- Apparatus and a method for measuring the curvature radii of spherical and cylindrical surfaces24 Jun 1997US 5,640,778 ANational Science Council
Most cited
By later US patents
- Golf ball sphericity gauge13US 4,385,447 A1983
- Golf ball out-of-round indicator13US 5,774,997 APerformance Dynamics, Inc. · 1998
- Surface shape evaluation method and device for spherical body8US 6,453,729 B1Nsk Ltd. · 2002
- Measuring set for determination of the sagittal depth and the average central curvature of gel contact lenses5US 4,205,452 ACeskoslovenska akademie ved · 1980
- Spherometer4US 5,131,159 AOlympus Optical Co., Ltd. · 1992