German technology group Heraeus has successfully defended its two patents CN101263568B and CN101263569B which cover methods for producing electrolyte capacitors before the Patent Reexamination Board of the Chinese State Intellectual Property Office.
“Heraeus appreciates very much the right decisions made by the China IP Office, and is committed to enforce its patents against violation, to support its customers against counterfeit capacitor production”, as stated firmly by Senior Vice President Bernd Stenger.
Heraeus is the technology leader in the field of conductive polymers and maintains a portfolio of more than 50 patent families to protect its important inventions made in the field of solid state capacitors, conductive coatings and other applications related to organic electronics.
By introducing the product CLEVIOS K, a waterborne conductive polymer based on Polyethylenedioxythiophene (PEDOT), to the market Heraeus has opened the door for new designs of tantalum and aluminum capacitors. Within the last decade the capacitor’s performance regarding capacitance, electrical serial resistance and high stability even under harsh environmental conditions could be continuously leveraged. In parallel the processes to produce capacitors were facilitated to allow customers to increase product output.
Heraeus’ fundamental patents granted in China on the production of electrolyte capacitors by employing conductive polymer dispersions with particle sizes of 1 – 100 nm were challenged recently by a Third Party. The Patent Reexamination Board of the Chinese State Intellectual Property Office rejected these invalidation actions and the patents were maintained as originally granted.