Patents-Review.com
ClassID:

146928 ⎘

F16B23/0015 - CPC Classification

Classification description:

Specially shaped heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool substantially rectangular, e.g. one-slot head

Recent Application in this class:
#1
20250369476
2025-12-04

SLOT GEOMETRY

 #2
20250251010
2025-08-07

SCREW DRIVE

 #3
20250163950
2025-05-22

SECURITY FASTENERS

 #4
20230375031
2023-11-23

Foreign material exclusion plug for structural threads with breakaway tab

 #5
20230349412
2023-11-02

SCREW DRIVE

 #6
20230243381
2023-08-03

Adapted Screw Head and Screwdriver Device

 #7
20220333632
2022-10-20

Hidden recess furniture screw and driver system

 #8
20220215973
2022-07-07

Deforming a portion of a nut threaded on a guide tube end plug to lock the nut to a lower end fitting of a nuclear reactor fuel assembly

 #9
20220042540
2022-02-10

Foreign material exclusion plug for structural threads with breakaway tab

 #10
20210025425
2021-01-28

T-Nut

 #11
20200284286
2020-09-10

Self-Drilling Ground Screw

 #12
20200232497
2020-07-23

Rotary fastening device

 #13
20190061121
2019-02-28

Lower end fitting locknut for nuclear fuel assembly

 #14
20190003515
2019-01-03

Fastener with pivoting head

 #15
20180347612
2018-12-06

Combination recess for driven fastener

 #16
20180146750
2018-05-31

CONNECTION STRUCTURE

 #17
20180010628
2018-01-11

Captive bolt and retainer

 #18
20170146047
2017-05-25

Slotted set screw structure

 #19
20170138386
2017-05-18

Recessed head screw

 #20
20160208840
2016-07-21

Fastener With Removable Head End

 #21
20130272481
2013-10-17

Lower end fitting locknut for nuclear fuel assembly

 #22
20130149065
2013-06-13

Torque-limited and removable fastener for one-time use

 #23
20130139657
2013-06-06

High speed, high torque screw fasteners and drive systems

 #24
20120312130
2012-12-13

FASTENERS AND FASTENING SYSTEMS

 #25
20120187127
2012-07-26

THREADED PLASTIC PLUG FOR FORCED SCREWING

 #26
20120090435
2012-04-19

SCREW AND SCREWDRIVER FOR SCREWING AND UNSCREWING THE SCREW

 #27
20100247270
2010-09-30

Screw assembly

 #28
20100111641
2010-05-06

SLOTTED SCREW

 #29
20090229429
2009-09-17

Torque reducing and stabilizing screwdrivers and slotted threaded fasteners and related methods

 #30
20090145270
2009-06-11

Torque reducing and stabilizing screwdrivers and slotted threaded fasteners and related methods

 #31
20090028663
2009-01-29

FASTENER COVER FOR LOW OBSERVABLE APPLICATIONS

 #32
20090010734
2009-01-08

SCREW

 #33
20080240884
2008-10-02

Locking device

 #34
20070217887
2007-09-20

Screw

 #35
20070212190
2007-09-13

Low profile fastening system

 #36
20070193419
2007-08-23

Strip resistant screw head and screwdriver tip in combination

 #37
20070140811
2007-06-21

High strength screw head and driver bit

 #38
20050152770
2005-07-14

Threaded device with improved resistance against torsion-caused breakage

 #39
20050109171
2005-05-26

Fastener and driving tool with retaining blade

 #40
20050008444
2005-01-13

Limited-torque plastic screw for attaching column-mounted elements of liquid-level gauges and feeding liquids thereto