JOHN L. ETHEN

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OAKDALE, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Retroreflective article
- Patent number 6,451,408
- Issue date Sep 17, 2002
- 3M Innovative Properties Company
- Dale H. Haunschild
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Retroflective articles including a cured ceramer composite coating...
- Patent number 6,265,061
- Issue date Jul 24, 2001
- 3M Innovative Properties Company
- Soonkun Kang
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Retroreflective articles including a cured ceramer composite coatin...
- Patent number 6,132,861
- Issue date Oct 17, 2000
- 3M Innovatives Properties Company
- Soonkun Kang
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Intersection markings
- Patent number 5,127,973
- Issue date Jul 7, 1992
- Minnesota Mining and Manufacturing Company
- Asok Sengupta
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Embossed pavement-marking sheet material
- Patent number 4,388,359
- Issue date Jun 14, 1983
- Minnesota Mining and Manufacturing Company
- John L. Ethen
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Long-lived heavy-duty pavement marking
- Patent number 4,282,281
- Issue date Aug 4, 1981
- Minnesota Mining and Manufacturing Company
- John L. Ethen
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES

Patents Applicationslast 30 patents

Information Patent Application
Method of making retroreflective material
- Publication number 20050079324
- Publication date Apr 14, 2005
- Dale H. Haunschild
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Application
RETROREFLECTIVE ARTICLE
- Publication number 20020090492
- Publication date Jul 11, 2002
- DALE H. HAUNSCHILD
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES