Heraeus challenges DuPont infringement lawsuit21. September 2012 | Industry & Suppliers, Products | By: Becky Beetz
Heraeus Precious Metals North America Conshohocken LLC has hit back at DuPont’s infringement lawsuit, saying that not only has it not infringed on the DuPont patent relating to front-side sliver pastes, but that DuPont is "engaging in unlawful trade practices."
In June, DuPont filed a law suit against Heraeus and its client SolarWorld Industries America, alleging that the two parties infringed on DuPont’s U.S. Patent No. 8,158,504 B2, relating to silver pastes used in the production of solar cells.
At the time, SolarWorld’s Ben Santarris branded the claim "surprising and incomprehensible." He added, "As a mere customer of Heraeus, we naturally don’t have any insight into the patent law situation of the various paste patents. We will now, however, discuss the issue with Heraeus and so far Heraeus’ position is that the accusations are unsubstantiated."
Now Heraeus has responded by filing several counterclaims. "Heraeus asserts that it is not infringing and has not infringed any valid claims of the patent in question (U.S. Patent 8,158,504). Heraeus further asserts that the ‘504 patent is invalid and requests that the judge assigned to this case make a ruling declaring it to be invalid," said the company in a statement released.
It went on to say that by making "false statements in press releases and in letters to customers" DuPont is "engaging in unlawful trade practices."
"We are filing counterclaims against DuPont to defend our innovative photovoltaic products and the 40-year history of Heraeus as an industry-leading developer and manufacturer of silver metallization pastes," stated Andy London, Global Manager for the Photovoltaics Business Unit. "We will continue to produce our paste products at sites worldwide and supply them to our customers. And in the interests of ourselves and our customers, we will continue to defend ourselves against unlawful threats."
Choose between a digital and print subscription from pv magazine publisher Solarpraxis AG’s online shop!
- 2821 views
- 2790 views
- 2723 views
- 2482 views
- 2368 views
Opinion & analysis
Why do so many believe MENA is the next big solar market?, asks Yassir Gamil, managing director of Solarpraxis' new MENA office
Want to publish your press releases for free? Simply log in or register, enter the information you want to appear and we'll publish it for you!