Douglas J. Cohen

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Columbus, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Refreshable tactile display
- Patent number 11,574,559
- Issue date Feb 7, 2023
- BEACON STREET INNOVATIONS, LLC
- Douglas Jay Cohen
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Screening machine
- Patent number 6,698,594
- Issue date Mar 2, 2004
- Ohio Central Steel Company
- Douglas J. Cohen
- B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
Information Patent Grant
Portable screening plant with displaceable eccentric
- Patent number 6,669,026
- Issue date Dec 30, 2003
- Ohio Central Steel Company
- Douglas J. Cohen
- B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
Information Patent Grant
Displaceable eccentric for vibratory screen
- Patent number 6,401,933
- Issue date Jun 11, 2002
- Ohio Central Steel Company An Ohio Corporation
- Douglas J. Cohen
- B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
Information Patent Grant
Multiple screen system
- Patent number 6,000,553
- Issue date Dec 14, 1999
- Ohio Central Steel Company
- Douglas J. Cohen
- B07 - SEPARATING SOLIDS FROM SOLIDS SORTING

Patents Applicationslast 30 patents

Information Patent Application
REFRESHABLE TACTILE DISPLAY
- Publication number 20220051590
- Publication date Feb 17, 2022
- BEACON STREET INNOVATIONS, LLC
- Douglas Jay COHEN
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
REFRESHABLE BRAILLE DISPLAY
- Publication number 20190385483
- Publication date Dec 19, 2019
- Douglas Jay COHEN
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Screening apparatus with hammermill
- Publication number 20050045052
- Publication date Mar 3, 2005
- Douglas J. Cohen
- B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
Information Patent Application
Screening machine
- Publication number 20030173265
- Publication date Sep 18, 2003
- Douglas J. Cohen
- B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
Information Patent Application
Portable screening plant with displaceable eccentric
- Publication number 20020195378
- Publication date Dec 26, 2002
- Douglas J. Cohen
- B07 - SEPARATING SOLIDS FROM SOLIDS SORTING