Learn more

CHANG DAVID

Overview
  • Total Patents
    30
  • GoodIP Patent Rank
    230,017
About

CHANG DAVID has a total of 30 patent applications. Its first patent ever was published in 1987. It filed its patents most often in United States, EPO (European Patent Office) and WIPO (World Intellectual Property Organization). Its main competitors in its focus markets computer technology, medical technology and digital networks are SHENZHEN IKINLOOP TECH CO LTD, SPACELABS INC and XIN QIN.

Patent filings per year

Chart showing CHANG DAVIDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Chang David 30
#2 Fischer Alan 5
#3 Patra Abhijit 4
#4 Powley Nicholas Ransom 4
#5 Fischer Andrew G 4
#6 Laio Yui 4
#7 Bagepalli Nagaraj 3
#8 Sethuraghavan Rajesh Kumar 1
#9 Villanueva Timothy 1
#10 Changpu Ma 1

Latest patents

Publication Filing date Title
US2014305985A1 Apparatus for improving the interchangeability of portable electronic devices amongst various supports and related methods
US2014346078A1 Fluid sealable protective case for portable electronic devices
US2014228081A1 Protective case for controlling sound waves
US2014073377A1 Protective case for portable electronic devices
US2013268588A1 Location aware virtual service provisioning in a hybrid cloud environment
US2013159068A1 System and method for determining quality of service for actions to be performed in a virtual space
US2013019277A1 Zone-based firewall policy model for a virtualized data center
US2012022357A1 Medical emitter/detector imaging/alignment system and method
US2010299074A1 Remote data collecting systems and methods
US8324857B1 Portable stackable solar batteries
EP2257322A1 Method and apparatus for vascular access
US2009288136A1 Highly parallel evaluation of XACML policies
US2009288135A1 Method and apparatus for building and managing policies
WO2008088795A2 Fiber optic brush for light delivery
AU2006225286A1 Barbecuing device
EP1762164A1 Barbecuing device
US2007299372A1 Foot sole massager
KR20030022608A Shoe with a pivotal counter portion
EP1287755A1 Shoe with a pivotal counter portion
US6594921B2 Shoe with a pivotal counter portion