Patents by Inventor Donald Douglas Little

Donald Douglas Little 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).

  • Patent number: 10676691
    Abstract: A candle holder comprises a housing for securing a candle; the housing including first thermochromic material formed on the housing and second thermochromic material formed on the thermochromic material. The first thermochromic material changes a perceivable state of the first thermochromic material when an ambient temperature of first thermochromic material is above a first pre-determined activation temperature, the perceivable state of the first thermochromic material being visually perceivable or non-visually perceivable. The second thermochromic material changes a perceivable state of the second thermochromic material when an ambient temperature of second thermochromic material is above a second pre-determined activation temperature, the perceivable state of the second thermochromic material being visually perceivable or non-visually perceivable. The perceivable state of the first thermochromic material is different from the perceivable state of the second thermochromic material.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: June 9, 2020
    Inventor: Donald Douglas Little
  • Publication number: 20190085263
    Abstract: A candle holder comprises a housing for securing a candle; the housing including first thermochromic material formed on the housing and second thermochromic material formed on the thermochromic material. The first thermochromic material changes a perceivable state of the first thermochromic material when an ambient temperature of first thermochromic material is above a first pre-determined activation temperature, the perceivable state of the first thermochromic material being visually perceivable or non-visually perceivable. The second thermochromic material changes a perceivable state of the second thermochromic material when an ambient temperature of second thermochromic material is above a second pre-determined activation temperature, the perceivable state of the second thermochromic material being visually perceivable or non-visually perceivable. The perceivable state of the first thermochromic material is different from the perceivable state of the second thermochromic material.
    Type: Application
    Filed: September 18, 2018
    Publication date: March 21, 2019
    Inventor: Donald Douglas Little