Patents by Inventor Hugo Rosenberger

Hugo Rosenberger has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Compound block kit
    Patent number: 4349293
    Abstract: A compound block kit of edge-toothed concrete blocks, in which the compound blocks are coordinated relative to their cross-sectional shape and size and have cobblestone blocks to palisade blocks of various heights. The cobblestone compound blocks and palisade compound blocks are provided with edge-teeth extending around the entire block circumference and are engageable with one another. The similar edge-teeth prevent a relative shifting of the blocks. The identical cross-sectional shapes and sizes permits any desired insertion and exchange of compound blocks at any desired position.
    Type: Grant
    Filed: January 8, 1980
    Date of Patent: September 14, 1982
    Inventor: Hugo Rosenberger
  • Paving block
    Patent number: 3947192
    Abstract: A paving block having sides which are shaped to provide an interlocking tooth engagement between the complementary sides of adjacent blocks when laid. Such engagement counteracts shifting of the laid blocks when loads are applied thereto.
    Type: Grant
    Filed: November 15, 1974
    Date of Patent: March 30, 1976
    Inventor: Hugo Rosenberger