As part of an ongoing lawsuitagainst EchoStar, the Patent Office did a formal review of 61 TiVo patents.
TiVo on Wednesday said the Patent Office reaffirmed most of the patents, although it did reject at least two patent claims. The digital video recorder (DVR) company did not say which patents were rejected.
"While certain of the patent claims were rejected by the Patent Office, this should in no way impact the jury verdict," TiVo said in a statement. "We will now be given an opportunity with the Patent Office to discuss our claims, which we believe should result in a reaffirmed and strengthened patent."
Some EchoStar set-top boxes have DVR capabilities. Both EchoStar and TiVo devices use "multimedia time warping system" technology that allows DVRs to record live television while the owner watches a pre-recorded program.
TiVo filed suit against EchoStar in 2004, alleging that its use of that technology infringed on a TiVo patent. In April,in damages. EchoStar has appealed the jury verdict. However, TiVo is attempting to use the ruling to get an injunction preventing EchoStar from shipping DVRs.
EchoStar is arguing the verdict on the grounds that some of TiVo's patents on the technology were invalid, and earlier this month it won one of its appeals concerning the original court's handling of evidence.
"We are pleased that the United States Patent and Trademark Office yesterday rejected many of TiVo's patent claims as invalid. That re-examination ruling, together with the favorable decision from the Court of Appeals earlier this month...are steps in the right direction as we prepare our response to TiVo's recently filed injunction motion," EchoStar said in a statement.
EchoStar also hinted that it would use theas part of its argument against TiVo.
TiVo said it plans to provide more details on the patent case during its earnings call Wednesday after the market has closed.