Patents by Inventor David W. Pfeffer

David W. Pfeffer 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).

  • Publication number: 20180245345
    Abstract: A masonry block configured to be larger than conventional two cell masonry block yet include cells that align with conventional cells in conventional two cell masonry blocks is disclosed. Thus, the masonry block disclosed herein may be used together with conventional two cell masonry blocks. In addition, the masonry block configured to be larger than conventional two cell masonry block may be formed from materials lighter than conventional materials yet possessing similar strength. As such, a mason is able to assembly more of a wall with the masonry block per unit of time using the masonry block disclosed herein than a conventional block. In at least one embodiment, a mason is able to lay about 50% more liner feet of block with the masonry block herein than using conventional two cell masonry block. Thus, the masonry block disclosed herein enables masons to realize substantial labor cost savings per job.
    Type: Application
    Filed: May 1, 2018
    Publication date: August 30, 2018
    Inventor: David W. Pfeffer
  • Publication number: 20160362889
    Abstract: A masonry block configured to be larger than conventional two cell masonry block yet include cells that align with conventional cells in conventional two cell masonry blocks is disclosed. Thus, the masonry block disclosed herein may be used together with conventional two cell masonry blocks. In addition, the masonry block configured to be larger than conventional two cell masonry block may be formed from materials lighter than conventional materials yet possessing similar strength. As such, a mason is able to assembly more of a wall with the masonry block per unit of time using the masonry block disclosed herein than a conventional block. In at least one embodiment, a mason is able to lay about 50% more liner feet of block with the masonry block herein than using conventional two cell masonry block. Thus, the masonry block disclosed herein enables masons to realize substantial labor cost savings per job.
    Type: Application
    Filed: June 10, 2016
    Publication date: December 15, 2016
    Inventor: David W. Pfeffer