Patents by Inventor Paulo Ricardo Pfeil

Paulo Ricardo Pfeil 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).

  • Apparatus and Method for Measuring the Spectral Properties of a Fluid
    Publication number: 20080273204
    Abstract: An apparatus and method for measuring the spectral properties of a paint, dye, enamel or other opaque fluid, both in transmission and reflection, wherein a lock-in amplifier (5) is used to increase substantially the signal-to-noise ratio of transmitted components of electromagnetic radiation passing through the fluid, thereby enabling transmittance measurements to be made to the order of 0.0001% or less of the incident electromagnetic radiation.
    Type: Application
    Filed: May 25, 2004
    Publication date: November 6, 2008
    Applicant: RENNER HERRMANN S.A.
    Inventors: Carlos Arthur Leaes Peixoto, Eduardo Schotgues, Paulo Ricardo Pfeil