David A. Szymanski

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St. Mary's, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Saw chain and safely connected links therefor
- Patent number 10,773,413
- Issue date Sep 15, 2020
- David A. Szymanski
- B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
Information Patent Grant
Safety chain and rotational devices and replaceable teeth therefor
- Patent number 7,836,808
- Issue date Nov 23, 2010
- David A. Szymanski
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
SAW CHAIN AND SAFELY CONNECTED LINKS THEREFOR
- Publication number 20160136837
- Publication date May 19, 2016
- David A. Szymanski
- B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
Information Patent Application
ANTI-KICKBACK INSERTABLE CHAIN AND REPLACEABLE TEETH THEREFOR
- Publication number 20110120280
- Publication date May 26, 2011
- David A. Szymanski
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Safety chain and rotational devices and replaceable teeth therefor
- Publication number 20070169598
- Publication date Jul 26, 2007
- David A. Szymanski
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Components having sharp edge made of sintered particulate material
- Publication number 20070169605
- Publication date Jul 26, 2007
- David A. Szymanski
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Wood cutting saw chain and replaceable cutting members
- Publication number 20050178263
- Publication date Aug 18, 2005
- David Szymanski
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR