Inventors list

Assignees list

Classification tree browser

Top 100 Inventors

Top 100 Assignees


Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
178002000 SYSTEMS 379
20130032415THROUGH METAL COMMUNICATION SYSTEM - The through metal communication system sends messages by tapping on metal barriers, such as pipelines, bulkheads, and the like. A robotic element attaches itself to a metal barrier, wall, pipe, and the like. A piezoelectric tapping device is attached to the robotic element and can tap an encoded message onto the metal. The robot preferably includes a piezoelectric actuator, a microcontroller to convert text/information to Morse code, and a power source for the actuator. The messages are retrieved and interpreted by a remote transducer connected to a computer or microcontroller.02-07-2013

Patent applications in class Telegraphy

Patent applications in all subclasses Telegraphy