Patents by Inventor Piotr Zak

Piotr Zak 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).

  • FIRE RESISTANT ATTIC STAIRS
    Publication number: 20240410179
    Abstract: Attic stairs are constructed out of a box, a ladder, a box closing hatch, so that the ladder is suspended from attic stairs box using hinges and the closing hatch is suspended from the ladder. The closing hatch features a stratified structure, including an inner layer located between two rigid outer strata, where the inner layer is entirely filled with a fire resistant material.
    Type: Application
    Filed: June 11, 2024
    Publication date: December 12, 2024
    Applicant: FAKRO PP Sp. z o. o.
    Inventors: Piotr Zak, Boguslaw Kasinski, Bartlomiej Mos
  • BOX CONSTRUCTION LOCK
    Publication number: 20230323706
    Abstract: A box construction lock with a strike plate assembly is provided. The box construction lock includes a locking mechanism with a locking latch-bolt, located in a lock housing, so that in the lock locked position, the locking latch-bolt is at least partially in the strike plate assembly, and there is adjustment range between the lock housing and the locking mechanism of the lock housing, so that the lock housing has at least two positions relative to the locking mechanism.
    Type: Application
    Filed: February 27, 2023
    Publication date: October 12, 2023
    Applicant: FAKRO PP Sp. z o. o.
    Inventors: Piotr Zak, Boguslaw Kasinski