Membership
Tour
Register
Log in
Ludwig Eigenmann
Follow
Person
Vacallo, Ticino, CH
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Continuous prefabricated road-marking tape with composite structure...
Patent number
4,993,868
Issue date
Feb 19, 1991
Minnesota Mining and Manufacturing Co.
Ludwig Eigenmann
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information
Patent Grant
Preformed polyurethane roadway-marking strip which is highly confor...
Patent number
4,990,024
Issue date
Feb 5, 1991
Minnesota Mining and Manufacturing Co.
Ludwig Eigenmann
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information
Patent Grant
Prefabricated continuous roadmarking tape having optical and electr...
Patent number
4,925,335
Issue date
May 15, 1990
Ludwig Eigenmann
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information
Patent Grant
Method of adhering a prefabricated marking strip to a roadway surfa...
Patent number
4,708,518
Issue date
Nov 24, 1987
Ludwig Eigenmann
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information
Patent Grant
Road marking provided with protruding elements capable of resisting...
Patent number
4,685,824
Issue date
Aug 11, 1987
Ludwig Eigenmann
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information
Patent Grant
Method for forming roadway-marking means whereby individual retrore...
Patent number
4,681,480
Issue date
Jul 21, 1987
Ludwig Eigenmann
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information
Patent Grant
Method and equipment for improving horizontal marking strips
Patent number
4,652,172
Issue date
Mar 24, 1987
Ludwig Eigenmann
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information
Patent Grant
Method and apparatus for the continuous laying road marking strips...
Patent number
4,565,467
Issue date
Jan 21, 1986
Ludwig Eigenmann
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information
Patent Grant
Anti-skid, wear- and stress-resisting road marking tape material
Patent number
RE31669
Issue date
Sep 11, 1984
Ludwig Eigenmann
428 - Stock material or miscellaneous articles
Information
Patent Grant
Production of transparent globules
Patent number
4,469,645
Issue date
Sep 4, 1984
Ludwig Eigenmann
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Self extinguishing polymeric compositions, which upon contacting a...
Patent number
4,461,862
Issue date
Jul 24, 1984
Ludwig Eigenmann
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Retroreflective structure and method of manufacturing the same
Patent number
4,416,510
Issue date
Nov 22, 1983
Ludwig Eigenmann
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Retro-reflecting globules for road surface marking
Patent number
4,411,553
Issue date
Oct 25, 1983
Ludwig Eigenmann
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information
Patent Grant
Road surface marking prefabricated tape material, having retrorefle...
Patent number
RE31291
Issue date
Jun 28, 1983
Ludwig Eigenmann
404 - Road structure, process, or apparatus
Information
Patent Grant
Machine for preparing road surfaces and forming traffic regulating...
Patent number
4,376,007
Issue date
Mar 8, 1983
Ludwig Eigenmann
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information
Patent Grant
Method for forming highly retro-reflecting roadway surface marking
Patent number
4,369,001
Issue date
Jan 18, 1983
Ludwig Eigenmann
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information
Patent Grant
Method and devices for forming highly retro-reflecting roadway surf...
Patent number
4,322,177
Issue date
Mar 30, 1982
Ludwig Eigenmann
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information
Patent Grant
Method of forming surface markings on roadway areas, and roadway ar...
Patent number
4,288,487
Issue date
Sep 8, 1981
Ludwig Eigenmann
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information
Patent Grant
Method and apparatus for applying horizontal road marking material...
Patent number
4,279,534
Issue date
Jul 21, 1981
Owens-Illinois, Inc.
Ludwig Eigenmann
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information
Patent Grant
Road marking machine and method
Patent number
4,236,950
Issue date
Dec 2, 1980
Ludwig Eigenmann
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information
Patent Grant
Method for producing improved retroreflective system for sign surfa...
Patent number
4,148,561
Issue date
Apr 10, 1979
Ludwig Eigenmann
G02 - OPTICS
Information
Patent Grant
Anti-skid, wear- and stress-resisting road marking tape material
Patent number
4,146,635
Issue date
Mar 27, 1979
Ludwig Eigenmann
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information
Patent Grant
Snowplowing resisting road surface marking tape material
Patent number
4,129,673
Issue date
Dec 12, 1978
Ludwig Eigenmann
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information
Patent Grant
Road surface marking prefabricated tape material, having retrorefle...
Patent number
4,129,397
Issue date
Dec 12, 1978
Ludwig Eigenmann
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information
Patent Grant
Retroreflective roadway surface marking tape material
Patent number
4,108,536
Issue date
Aug 22, 1978
Ludwig Eigenmann
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Method and devices for applying tape marking material on road surfaces
Patent number
4,102,718
Issue date
Jul 25, 1978
Ludwig Eigenmann
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information
Patent Grant
Method and devices for road surface marking
Patent number
4,082,587
Issue date
Apr 4, 1978
Ludwig Eigenmann
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information
Patent Grant
Retro-reflecting assembly
Patent number
4,072,403
Issue date
Feb 7, 1978
Ludwig Eigenmann
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Method and devices for road surface marking
Patent number
4,071,384
Issue date
Jan 31, 1978
Ludwig Eigenmann
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information
Patent Grant
Prefabricated roadway marking strip material and method for produci...
Patent number
4,069,281
Issue date
Jan 17, 1978
Ludwig Eigenmann
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES