Frank Chvojcsek

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Patents Grantslast 30 patents

Information Patent Grant
Adjustable LCD screen assembly for writing machine
- Patent number 7,403,375
- Issue date Jul 22, 2008
- Stenograph LLC
- Frank John Chvojcsek
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Disposable ribbon cartridge for shorthand machines
- Patent number 6,736,558
- Issue date May 18, 2004
- Stenograph LLC
- Vae E. Sun
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Disposable ribbon cartridge for shorthand machine
- Patent number 6,422,771
- Issue date Jul 23, 2002
- Stenograph Corporation
- Frank Chvojcsek
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Referencing device for digital data recorders
- Patent number 4,439,798
- Issue date Mar 27, 1984
- Stenograph Corporation
- Frank Chvojcsek
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Marking device for shorthand machine
- Patent number 4,363,557
- Issue date Dec 14, 1982
- Stenograph Corporation
- Paul J. Fowler
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS

Patents Applicationslast 30 patents

Information Patent Application
METHOD AND APPARATUS FOR MEASURING KEYSTROKE
- Publication number 20110025606
- Publication date Feb 3, 2011
- STENOGRAPH, L.L.C.
- Frank J. Chvojcsek
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Disposable ribbon cartridge for shorthand machines
- Publication number 20020098028
- Publication date Jul 25, 2002
- STENOGRAPH CORPORATION
- Vae E. Sun
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS