ClassID:

167396

G01N3/44 - CPC Classification

Classification description:

Investigating strength properties of solid materials by application of mechanical stress; Investigating hardness or rebound hardness by performing impressions under a steady load by indentors, e.g. sphere, pyramid the indentors being put under a minor load and a subsequent major load, i.e. Rockwell system

Recent Application in this class:
#1
20260071945
2026-03-12

Battery Abuse System that Facilitates In-Situ X-Ray Imaging and Multi-Modal Measurements and Methods Thereof

#2
20250237588
2025-07-24

INDENTATION PLASTOMETY

#3
20250216306
2025-07-03

APPARATUS FOR DETECTING CHEMICALS IN A SAMPLE

#4
20200217766
2020-07-09

Identifying fracture barriers for hydraulic fracturing

#5
20200110012
2020-04-09

Hardness tester

#6
20180275035
2018-09-27

Measurement of material properties under local tensile stress through contact mechanics

#7
20180230278
2018-08-16

POLYIMIDE-BASED FILM, COMPOSITION FOR PREPARING POLYIMIDE-BASED FILM, DISPLAY DEVICE INCLUDING POLYIMIDE-BASED FILM, AND INDENTATION HARDNESS ESTIMATING METHOD THEREOF

#8
20160282243
2016-09-29

Structure for achieving dimensional stability during temperature changes

#9
20160186817
2016-06-30

FRICTION COUPLING

#10
20160178498
2016-06-23

Method for rockwell hardness testing of tubulars post wellbore installation

#11
20140013835
2014-01-16

IN-LINE HARDNESS INSPECTION DEVICE, IN-LINE HARDNESS INSPECTION METHOD, AND ROBOT

#12
20130319091
2013-12-05

Indentation tester

#13
20130247645
2013-09-26

HARDNESS TESTER AND HARDNESS TESTING METHOD

#14
20110286304
2011-11-24

Downhole acoustic emission formation sampling

#15
20110246102
2011-10-06

Acoustic emission toughness testing for PDC, PCBN, or other hard or superhard material inserts

#16
20110246096
2011-10-06

Acoustic emission toughness testing for PDC, PCBN, or other hard or superhard materials

#17
20110239767
2011-10-06

Acoustic emission toughness testing having smaller noise ratio

#18
20110239765
2011-10-06

Acoustic emission toughness testing for PDC, PCBN, or other hard or superhard material inserts

#19
20080141763
2008-06-19

Portable Magnetic Hardness Tester

#20
20050085728
2005-04-21

Apparatus and program for estimating viscoelasticity of soft tissue using ultrasound