Charles Henry Cowie

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Fayetteville, AR, US

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Patents Grantslast 30 patents

Information Patent Grant
Power head for powered concrete roller screed
- Patent number 11,686,114
- Issue date Jun 27, 2023
- Marshalltown Company
- Charles H. Cowie
- E04 - BUILDING
Information Patent Grant
Power head for powered concrete roller screed
- Patent number 11,111,681
- Issue date Sep 7, 2021
- Marshalltown Company
- Charles H. Cowie
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Handle assembly for trowel
- Patent number 10,549,415
- Issue date Feb 4, 2020
- Marshalltown Company
- John T. Hughes
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Grant
Handle for tool including rings for single-handed use
- Patent number D807134
- Issue date Jan 9, 2018
- Marshalltown Company
- John T. Hughes
- D08 - Tools and hardware
Information Patent Grant
Octagonal extension handle
- Patent number 9,643,311
- Issue date May 9, 2017
- Marshalltown Company
- Charles Henry Cowie
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS

Patents Applicationslast 30 patents

Information Patent Application
POWER HEAD FOR POWERED CONCRETE ROLLER SCREED
- Publication number 20220074216
- Publication date Mar 10, 2022
- Marshalltown Company
- Charles H. Cowie
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Application
POWER HEAD FOR POWERED CONCRETE ROLLER SCREED
- Publication number 20200190834
- Publication date Jun 18, 2020
- Marshalltown Company
- Charles H. Cowie
- E04 - BUILDING
Information Patent Application
HANDLE ASSEMBLY FOR TROWEL
- Publication number 20170291293
- Publication date Oct 12, 2017
- Marshalltown Company
- John T. Hughes
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS