GROTH, A. T. INC

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WILBRAHAM, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
Pilot operated safety relief valve adapted for low fluid pressures
- Patent number 5,992,449
- Issue date Nov 30, 1999
- Groth Corporation
- Charles F. Sprague
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Diaphragm operated regulator valve for maintaining low gas pressure
- Patent number 5,931,188
- Issue date Aug 3, 1999
- Groth Corporation
- Charles F. Sprague
- G05 - CONTROLLING REGULATING
Information Patent Grant
Pressure relief valves adapted for low pressure operation
- Patent number 5,555,910
- Issue date Sep 17, 1996
- Groth Corporation
- Walter W. Powell
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Sealing means for pressure relief valves and methods of assembly
- Patent number 5,499,648
- Issue date Mar 19, 1996
- Groth Corporation
- Walter W. Powell
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Float assisted automatic driptrap
- Patent number 5,421,360
- Issue date Jun 6, 1995
- Groth Corporation
- Louis R. Castaneda
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Diaphragm operated spring loaded regulator
- Patent number 5,238,021
- Issue date Aug 24, 1993
- Groth Corporation
- Walter W. Powell
- G05 - CONTROLLING REGULATING

Patents Applicationslast 30 patents

Information Patent Application
ATHLETIC TRAINING DEVICE
- Publication number 20160199716
- Publication date Jul 14, 2016
- Groth LLC
- Kirsten Eriksen Nergaard
- A63 - SPORTS GAMES AMUSEMENTS

Trademarklast 30 trademarks

Information Trademark
88352320 - GARD GROTH AUTHORIZED REPAIR DEALER
- Serial number 88352320
- Registration number 6103124
- Filing date Mar 22, 2019
- Groth Corporation
- B -
Information Trademark
78712515 - SMART RELIEF...SAFE SOLUTIONS
- Serial number 78712515
- Registration number 3432832
- Filing date Sep 14, 2005
- Groth Corporation
- 40 - Treatment of materials