Lennart Nielson

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Edina, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Retractable roof system for stadium
- Patent number 6,789,360
- Issue date Sep 14, 2004
- Uni-Systems, LLC
- Cyril Silberman
- E04 - BUILDING
Information Patent Grant
Movable wall for stadium
- Patent number 6,718,696
- Issue date Apr 13, 2004
- Uni-Systems, LLC
- Cyril Silberman
- E04 - BUILDING
Information Patent Grant
Convertible stadium and method of operating
- Patent number 6,698,141
- Issue date Mar 2, 2004
- Uni-Systems, LLC
- Cyril Silberman
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES

Patents Applicationslast 30 patents

Information Patent Application
Movable wall for stadium
- Publication number 20020134028
- Publication date Sep 26, 2002
- Cyril Silberman
- E04 - BUILDING
Information Patent Application
Convertible stadium and method of operating
- Publication number 20020129561
- Publication date Sep 19, 2002
- Cyril Silberman
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Application
Retractable roof system for stadium
- Publication number 20020129565
- Publication date Sep 19, 2002
- Cyril Silberman
- E04 - BUILDING