James A. Ptacek

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Plymouth, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Traffic flow barrier with corresponding production mold and hand cart
- Patent number 10,844,559
- Issue date Nov 24, 2020
- WARNING LITES OF MINNESOTA, INC.
- James Ptacek
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Interlocking fencing system
- Patent number 8,387,955
- Issue date Mar 5, 2013
- Highway Technologies, Inc.
- James A. Ptacek
- E04 - BUILDING

Patents Applicationslast 30 patents

Information Patent Application
TRAFFIC FLOW BARRIER WITH CORRESPONDING PRODUCTION MOLD AND HAND CART
- Publication number 20190330812
- Publication date Oct 31, 2019
- WARNING LITES OF MINNESOTA, INC.
- James PTACEK
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Application
INTERLOCKING FENCING SYSTEM
- Publication number 20100044663
- Publication date Feb 25, 2010
- James A. Ptacek
- E04 - BUILDING