Patents by Inventor Jotham Chang

Jotham Chang 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: 12680952
    Abstract: Image forming devices are described comprising a humidity indicator, a scanner to optically scan the humidity indicator, a processor, and a non-transitory computer readable medium storing computer-executable instructions that when executed by the processor cause the processor to instruct the scanner to initiate an optical scan of the humidity indicator, determine a humidity level based on the optical scan of the humidity indicator, and instruct the image forming device to adapt a behavior characteristic of the image forming device responsive of the humidity level.
    Type: Grant
    Filed: October 31, 2023
    Date of Patent: July 14, 2026
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Jotham Chang, Siew Hong Lam, Seng San Koh, Wei Lit Teoh
  • Publication number: 20250137958
    Abstract: An example device may include an image forming device, comprising a humidity indicator, a scanner to optically scan the humidity indicator, a processor, and a non-transitory computer readable medium storing computer-executable instructions that when executed by the processor cause the processor to instruct the scanner to initiate an optical scan of the humidity indicator, determine a humidity level based on the optical scan of the humidity indicator, and instruct the image forming device to adapt a behavior characteristic of the image forming device responsive of the humidity level.
    Type: Application
    Filed: October 31, 2023
    Publication date: May 1, 2025
    Inventors: Jotham Chang, Siew Hong Lam, Seng San Koh, Wei Lit Teoh