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B21K21/14

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Parent Industries

BPERFORMING OPERATIONS TRANSPORTING B21Mechanical metalworking B21KMAKING FORGED OR PRESSED METAL PRODUCTS B21K21/00Making hollow articles not covered by a single preceding sub-group

Current Industry

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Patents Grantslast 30 patents

Information Patent Grant
Hollow coil spring and suspension device for vehicle
- Patent number 11,685,211
- Issue date Jun 27, 2023
- NHK Spring Co., Ltd.
- Masahiro Umezawa
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Shell case design utilizing metal injection molding
- Patent number 11,493,314
- Issue date Nov 8, 2022
- Concurrent Technologies Corporation
- Todd Skowron
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Shell case design utilizing metal injection molding
- Patent number 11,465,207
- Issue date Oct 11, 2022
- Concurrent Technologies Corporation
- Todd Skowron
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Metal injection molded cased telescoped ammunition
- Patent number 11,353,305
- Issue date Jun 7, 2022
- Concurrent Technologies Corporation
- Todd Skowron
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Hollow coil spring and suspension device for vehicle
- Patent number 11,254,177
- Issue date Feb 22, 2022
- NHK Spring Co., Ltd.
- Masahiro Umezawa
- B60 - VEHICLES IN GENERAL
Information Patent Grant
High-pressure seamless steel cylinder with second inner neck and th...
- Patent number 10,898,945
- Issue date Jan 26, 2021
- VITKOVICE CYLINDERS a.s.
- Tomas Pijanowski
- F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS
Information Patent Grant
Method of making an axle
- Patent number 10,710,147
- Issue date Jul 14, 2020
- ArvinMeritor Technology, LLC
- Andrew Bodary
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Vehicle stabilizer, processing device for eye portion of stabilizer...
- Patent number 10,696,122
- Issue date Jun 30, 2020
- NHK Spring Co., Ltd.
- Yasuharu Sakurai
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Method of manufacturing hollow axle shaft for a vehicle
- Patent number 9,630,451
- Issue date Apr 25, 2017
- American Axle & Manufacturing, Inc.
- John A. Pale
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Method for producing throttle holes having a low cavitation transmi...
- Patent number 8,881,400
- Issue date Nov 11, 2014
- Robert Bosch GmbH
- Stefan Schantz
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Hollow drill and a production process for the same
- Patent number 8,806,982
- Issue date Aug 19, 2014
- Hilti Aktiengesellschaft
- Klaus-Peter Bohn
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method for providing an armature housing
- Patent number 7,958,764
- Issue date Jun 14, 2011
- Indimet Inc.
- Shreyas R. Mehta
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Gas manifold for a cooking range, with a pipe closure
- Patent number 7,861,706
- Issue date Jan 4, 2011
- Coprecitec, S.L.
- Alberto Bellomo
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Closing device and closing method
- Patent number 7,854,156
- Issue date Dec 21, 2010
- Kayaba Industry Co., Ltd.
- Naomasa Tsuda
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Co-extruded generating bank swaged tubing
- Patent number 7,653,999
- Issue date Feb 2, 2010
- Babcock & Wilcox Canada Ltd.
- Dirk B. Varo
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Microsurgical probe
- Patent number 7,600,405
- Issue date Oct 13, 2009
- Alcon, Inc.
- Robert S. Maurer, Jr.
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Bottomed cylindrical piston and method of manufacturing bottomed cy...
- Patent number 7,584,693
- Issue date Sep 8, 2009
- Akebono Brake Industry Co., Ltd.
- Yukio Iwata
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method for manufacture of a metal shell, and a cup designed to serv...
- Patent number 7,225,658
- Issue date Jun 5, 2007
- Zakrisdalsverken Aktiebolag
- Lennart Hakansson
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Outer shell unit and method of manufacturing the unit
- Patent number 7,022,932
- Issue date Apr 4, 2006
- Kayaba Industry Co., Ltd.
- Toshihiko Hatakeyama
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Method of working end part of metallic tube body and metallic tube...
- Patent number 6,918,277
- Issue date Jul 19, 2005
- Toyo Tire & Rubber Co., Ltd.
- Hiroaki Takahashi
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Method of forming a cavity structure with a thin bottom base plate
- Patent number 6,662,427
- Issue date Dec 16, 2003
- Nakamura Seisakusho Kabushikigaisha
- Hideyuki Miyahara
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method for manufacturing metal material with an intermediate hollow...
- Patent number 6,401,511
- Issue date Jun 11, 2002
- Tony Leng
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Method for forming a recess portion on a metal plate
- Patent number 6,145,365
- Issue date Nov 14, 2000
- Nakamura Seisakusho Kabushikigaisha
- Hideyuki Miyahara
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Process for tightly closing a bore in a work piece made of ductile...
- Patent number 6,018,976
- Issue date Feb 1, 2000
- Robert Bosch GmbH
- Markus Wolf
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Extruded metal tubes
- Patent number 5,611,454
- Issue date Mar 18, 1997
- Enviro Pac International, Llc.
- Joe L. Abbott
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Method and apparatus for forming extruded metal tubes
- Patent number 5,570,806
- Issue date Nov 5, 1996
- Joe L. Abbott
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Method and apparatus for forming extruded metal tubes
- Patent number 5,377,518
- Issue date Jan 3, 1995
- Enviro Pac International, Llc.
- Joe L. Abbott
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Method for forming a piston having a peg
- Patent number 4,887,449
- Issue date Dec 19, 1989
- Akebono Brake Industry Co., Ltd.
- Tamotsu Kanai
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Valve lifter and method of producing the same
- Patent number 4,829,950
- Issue date May 16, 1989
- Hitachi, Ltd.
- Hisanobu Kanamaru
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Convex type bottom with a bearing rim for bottles for industrial ga...
- Patent number 4,609,118
- Issue date Sep 2, 1986
- Simmel S.p.A.
- Italo Pilotto
- F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS

Patents Applicationslast 30 patents

Information Patent Application
HOLLOW COIL SPRING AND SUSPENSION DEVICE FOR VEHICLE
- Publication number 20220041027
- Publication date Feb 10, 2022
- NHK Spring Co., Ltd.
- Masahiro UMEZAWA
- B60 - VEHICLES IN GENERAL
Information Patent Application
SHELL CASE DESIGN UTILIZING METAL INJECTION MOLDING
- Publication number 20210129224
- Publication date May 6, 2021
- Concurrent Technologies Corporation
- Todd Skowron
- B22 - CASTING POWDER METALLURGY
Information Patent Application
ONE PIECE AXLE AND METHOD OF MANUFACTURE
- Publication number 20190329316
- Publication date Oct 31, 2019
- ArvinMeritor Technology, LLC
- Andrew Bodary
- B60 - VEHICLES IN GENERAL
Information Patent Application
HIGH-PRESSURE SEAMLESS STEEL CYLINDER WITH SECOND INNER NECK AND TH...
- Publication number 20180243820
- Publication date Aug 30, 2018
- VITKOVICE CYLINDERS a.s.
- Tomas PIJANOWSKI
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
Shell Case Design Utilizing Metal Injection Molding
- Publication number 20180065183
- Publication date Mar 8, 2018
- Concurrent Technologies Corporation
- Todd Skowron
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
Hollow Drill and A Production Process for the Same
- Publication number 20110280678
- Publication date Nov 17, 2011
- HILTI AKTIENGESELLSCHAFT
- Klaus-Peter Bohn
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Method for Producing Throttle Holes having a Low Cavitation Transmi...
- Publication number 20110226344
- Publication date Sep 22, 2011
- ROBERT BOSCH GmbH
- Stefan Schantz
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
Swirl spraying nozzle for sprayng liquid fuel, and method of produc...
- Publication number 20110024517
- Publication date Feb 3, 2011
- Andreas Heilos
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
Microsurgical probe
- Publication number 20100042125
- Publication date Feb 18, 2010
- Robert S. Maurer, JR.
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Closing Method and Closing Machine
- Publication number 20090272170
- Publication date Nov 5, 2009
- KAYABA INDUSTRY CO., LTD.
- Taiji Hattori
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
Method For Providing an Armature Housing
- Publication number 20090205393
- Publication date Aug 20, 2009
- Shreyas R. Mehta
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
Closing device and closing method
- Publication number 20080034826
- Publication date Feb 14, 2008
- Kayaba Industry Co., Ltd.
- Naomasa Tsuda
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
Bottomed cylindrical piston and method of manufacturing bottomed cy...
- Publication number 20070199774
- Publication date Aug 30, 2007
- Akebono Brake Industry Co., Ltd
- Yukio Iwata
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Microsurgical probe
- Publication number 20070093793
- Publication date Apr 26, 2007
- Robert S. Maurer
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Gas manifold for a cooking range, with a pipe closure
- Publication number 20070028915
- Publication date Feb 8, 2007
- Alberto Bellomo
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
Co-extruded generating bank swaged tubing
- Publication number 20060218792
- Publication date Oct 5, 2006
- Dirk B. Varo
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Method for manufacture of a metal shell, and a cup designed to serv...
- Publication number 20060112751
- Publication date Jun 1, 2006
- Lennart Hakansson
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
Outer shell unit and method of manufacturing the unit
- Publication number 20040045778
- Publication date Mar 11, 2004
- Toshihiko Hatakeyama
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Method of working end part of metallic tube body and metallic tube...
- Publication number 20040011103
- Publication date Jan 22, 2004
- Hiroaki Takahashi
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
Method of forming a cavity structure with a thin bottom base plate
- Publication number 20010018792
- Publication date Sep 6, 2001
- Hideyuki Miyahara
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

closed or substantially-closed ends

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Hollow coil spring and suspension device for vehicle

Shell case design utilizing metal injection molding

Shell case design utilizing metal injection molding

Metal injection molded cased telescoped ammunition

Hollow coil spring and suspension device for vehicle

High-pressure seamless steel cylinder with second inner neck and th...

Method of making an axle

Vehicle stabilizer, processing device for eye portion of stabilizer...

Method of manufacturing hollow axle shaft for a vehicle

Method for producing throttle holes having a low cavitation transmi...

Hollow drill and a production process for the same

Method for providing an armature housing

Gas manifold for a cooking range, with a pipe closure

Closing device and closing method

Co-extruded generating bank swaged tubing

Microsurgical probe

Bottomed cylindrical piston and method of manufacturing bottomed cy...

Method for manufacture of a metal shell, and a cup designed to serv...

Outer shell unit and method of manufacturing the unit

Method of working end part of metallic tube body and metallic tube...

Method of forming a cavity structure with a thin bottom base plate

Method for manufacturing metal material with an intermediate hollow...

Method for forming a recess portion on a metal plate

Process for tightly closing a bore in a work piece made of ductile...

Extruded metal tubes

Method and apparatus for forming extruded metal tubes

Method and apparatus for forming extruded metal tubes

Method for forming a piston having a peg

Valve lifter and method of producing the same

Convex type bottom with a bearing rim for bottles for industrial ga...

Patents Applicationslast 30 patents

HOLLOW COIL SPRING AND SUSPENSION DEVICE FOR VEHICLE

SHELL CASE DESIGN UTILIZING METAL INJECTION MOLDING

ONE PIECE AXLE AND METHOD OF MANUFACTURE

HIGH-PRESSURE SEAMLESS STEEL CYLINDER WITH SECOND INNER NECK AND TH...

Shell Case Design Utilizing Metal Injection Molding

Hollow Drill and A Production Process for the Same

Method for Producing Throttle Holes having a Low Cavitation Transmi...

Swirl spraying nozzle for sprayng liquid fuel, and method of produc...

Microsurgical probe

Closing Method and Closing Machine

Method For Providing an Armature Housing

Closing device and closing method

Bottomed cylindrical piston and method of manufacturing bottomed cy...

Microsurgical probe

Gas manifold for a cooking range, with a pipe closure

Co-extruded generating bank swaged tubing

Method for manufacture of a metal shell, and a cup designed to serv...

Outer shell unit and method of manufacturing the unit

Method of working end part of metallic tube body and metallic tube...

Method of forming a cavity structure with a thin bottom base plate