Theodore E. Hillman

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Cloquet, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for producing a fissured, acoustical ceiling panel and me...
- Patent number 5,560,881
- Issue date Oct 1, 1996
- USG Interiors, Inc.
- Theodore E. Hillman
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Soft textured reveal edge ceiling board and process for its manufac...
- Patent number 4,711,685
- Issue date Dec 8, 1987
- USG Acoustical Products Company
- Theodore E. Hillman
- B32 - LAYERED PRODUCTS
Information Patent Grant
Apparatus for applying secondary layer on board surface
- Patent number 4,089,740
- Issue date May 16, 1978
- Conwed Corporation
- Theodore Eugene Hillman
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Hole punching method and apparatus
- Patent number 4,083,273
- Issue date Apr 11, 1978
- Conwed Corporation
- Theodore E. Hillman
- B26 - HAND CUTTING TOOLS CUTTING SEVERING
Information Patent Grant
Method and apparatus for perforating fibrous board surfaces in non-...
- Patent number 4,037,499
- Issue date Jul 26, 1977
- Conwed Corporation
- Theodore E. Hillman
- B26 - HAND CUTTING TOOLS CUTTING SEVERING