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Patents Grantslast 30 patents

Information Patent Grant
Sound absorbing board
- Patent number 11,339,545
- Issue date May 24, 2022
- Hung-Ming Hsu
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Marking assembly for the marking of particular traffic situations a...
- Patent number 7,033,103
- Issue date Apr 25, 2006
- Marcel Peter Gort
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Noise-protection screen
- Patent number 5,713,161
- Issue date Feb 3, 1998
- Durisol Materials Limited
- Arend Johan Veldhoen
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Sound barrier
- Patent number 4,095,669
- Issue date Jun 20, 1978
- William R. Bond
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Noise reduction barrier
- Patent number 3,983,956
- Issue date Oct 5, 1976
- J. Kenneth Manhart
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
3812931
- Patent number 3,812,931
- Issue date May 28, 1974
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
3783968
- Patent number 3,783,968
- Issue date Jan 8, 1974
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
3080937
- Patent number 3,080,937
- Issue date Mar 12, 1963
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES