Patents by Inventor John Lawrence Norris

John Lawrence Norris 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).

  • Reflective non-contact ocular pulse analyzer for clinical diagnosis of eye and cerebrovascular disease
    Patent number: 8740795
    Abstract: An instrument has been designed to study the pulsatile motion of the eye by analysis of a beam of light reflected from the corneal surface. A laser light beam probe of small spot size and low divergence strikes the cornea apex and the reflected movement is recorded by a sensor. Analysis of the beam movement reveals the energy in the eye pulse without the necessity of physically touching the eye. The value of the intraocular pressure is determined from the calculated power spectrum. The sensitivity, accuracy and efficiency of the light beam makes possible studying both eyes concurrently and comparison of the pulse parameters of onset, amplitude and duration reveals any delay in circulation to an eye.
    Type: Grant
    Filed: March 21, 2008
    Date of Patent: June 3, 2014
    Inventors: John Lawrence Norris, Robert W Allison, Jr.
  • Reflective non-contact ocular pulse analyzer for clinical diagnosis of eye and cerebrovascular disease
    Publication number: 20080242965
    Abstract: An instrument has been designed to study the pulsatile motion of the eye by analysis of a beam of light reflected from the corneal surface. A laser light beam probe of small spot size and low divergence strikes the cornea apex and the reflected movement is recorded by a sensor. Analysis of the beam movement reveals the energy in the eye pulse without the necessity of physically touching the eye. The value of the intraocular pressure is determined from the calculated power spectrum. The sensitivity, accuracy and efficiency of the light beam makes possible studying both eyes concurrently and comparison of the pulse parameters of onset, amplitude and duration reveals any delay in circulation to an eye.
    Type: Application
    Filed: March 21, 2008
    Publication date: October 2, 2008
    Inventors: John Lawrence Norris, Robert W. Allison