Steve M. Stawychny

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Chicago, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Device for securing a guardrail to a pour stop
- Patent number 12,195,977
- Issue date Jan 14, 2025
- Steve M. Stawychny
- E04 - BUILDING
Information Patent Grant
Tie-off anchor device with manually secured weights
- Patent number 10,549,134
- Issue date Feb 4, 2020
- SWITCH RAIL SAFETY SYSTEMS, LLC
- Steve M. Stawychny
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Grant
Metal safety rail for open floors of a building under construction
- Patent number 8,925,904
- Issue date Jan 6, 2015
- Alfred C. Christoffer
- E04 - BUILDING
Information Patent Grant
Metal safety rail for open floors of a building under construction
- Patent number 8,424,851
- Issue date Apr 23, 2013
- Alfred C. Christoffer
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES

Patents Applicationslast 30 patents

Information Patent Application
Device for Securing a Guardrail to a Pour Stop
- Publication number 20230017137
- Publication date Jan 19, 2023
- Steve M. Stawychny
- E04 - BUILDING
Information Patent Application
LOCKING DEVICE
- Publication number 20190257111
- Publication date Aug 22, 2019
- SwitchRail Safety Systems, LLC
- Steve M. Stawychny
- E04 - BUILDING
Information Patent Application
METAL SAFETY RAIL FOR OPEN FLOORS OF A BUILDING UNDER CONSTRUCTION
- Publication number 20150069313
- Publication date Mar 12, 2015
- Alfred C. Christoffer
- E04 - BUILDING
Information Patent Application
METAL SAFETY RAIL FOR OPEN FLOORS OF A BUILDING UNDER CONSTRUCTION
- Publication number 20140191172
- Publication date Jul 10, 2014
- Alfred C. Christoffer
- E04 - BUILDING
Information Patent Application
Metal safety rail for open floors of a building under construction
- Publication number 20110017968
- Publication date Jan 27, 2011
- Alfred C. Christoffer
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES