Membership
Tour
Register
Log in
Ringfeder Corporation
Follow
Organization
New York, NY, US
Organizations
Overview
Industries
People
People
Information
Transactions
Events
Impact
Please log in for detailed analytics
Patents Grants
last 30 patents
Information
Patent Grant
Synthetic-resin compression spring
Patent number
4,660,811
Issue date
Apr 28, 1987
Ringfeder G.m.b.H.
Dieter Muhlhahn
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Arrangement for resilient absorption of forces
Patent number
4,428,565
Issue date
Jan 31, 1984
Ringfeder G.m.b.H.
Christian Stiefel
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Force absorbing arrangement
Patent number
4,282,979
Issue date
Aug 11, 1981
Ringfeder G.m.b.H.
Josef Friedrichs
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Friction spring unit
Patent number
4,262,887
Issue date
Apr 21, 1981
Ringfeder GmbH
Harry Jansen
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Arrangement for the absorption of forces
Patent number
4,262,888
Issue date
Apr 21, 1981
Ringfeder GmbH
Harry Jansen
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Arrangement for resilient absorption of forces
Patent number
4,260,142
Issue date
Apr 7, 1981
Ringfeder G.m.b.H.
Christian Stiefel
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Coupling for shafts and the like
Patent number
4,134,699
Issue date
Jan 16, 1979
Ringfeder GmbH
Horst-Dieter Schafer
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Coupling unit
Patent number
4,095,908
Issue date
Jun 20, 1978
Ringfeder GmbH
Horst-Dieter Schafer
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Shaft coupled to surrounding hub
Patent number
4,025,213
Issue date
May 24, 1977
Ringfeder GmbH
Horst-Dieter Schafer
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Bolt tensioning arrangement
Patent number
4,010,669
Issue date
Mar 8, 1977
Ringfeder GmbH
Ulrich Kloren
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Detachable coupling device
Patent number
3,998,563
Issue date
Dec 21, 1976
Ringfeder GmbH
Ulrich Kloren
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Coaxial, double-cone, frictional hub-to-shaft connector
Patent number
3,957,381
Issue date
May 18, 1976
Ringfeder GmbH
Horst-Dieter Schafer
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Please log in for detailed analytics
Trademark
last 30 trademarks
Information
Trademark
76143432 - ARCUSAFLEX
Serial number
76143432
Registration number
2487524
Filing date
Oct 10, 2000
RINGFEDER CORPORATION
6 - Common metals and their alloys
Information
Trademark
76143453 - RING SPRING
Serial number
76143453
Registration number
2492527
Filing date
Oct 10, 2000
RINGFEDER CORPORATION
6 - Common metals and their alloys
Information
Trademark
76143819 - SHRINK DISC
Serial number
76143819
Registration number
2490743
Filing date
Oct 10, 2000
RINGFEDER CORPORATION
6 - Common metals and their alloys
Information
Trademark
76087433 - RING-FLEX
Serial number
76087433
Registration number
2561302
Filing date
Jul 12, 2000
RINGFEDER CORPORATION
6 - Common metals and their alloys
Information
Trademark
75538052 - DEFORM PLUS
Serial number
75538052
Registration number
2426060
Filing date
Aug 17, 1998
RINGFEDER GmbH
7 - Machines and machine tools
Information
Trademark
74601640
Serial number
74601640
Registration number
1986628
Filing date
Nov 21, 1994
RINGFEDER GMBH
7 - Machines and machine tools
Information
Trademark
72416936
Serial number
72416936
Registration number
976277
Filing date
Feb 29, 1972
RINGFEDER GMBH
6 - Common metals and their alloys
Information
Trademark
72411051 - RINGFEDER
Serial number
72411051
Registration number
974282
Filing date
Dec 23, 1971
RINGFEDER GMBH
7 - Machines and machine tools