Bankrupt Kodak is selling the patents, which it believes could be worth $2.6 billion, in order to repay creditors. The company filed for Chapter 11 protection in January after failing to keep up as consumers and rivals shifted to digital photography from film photography.

A spokeswoman for the company declined to discuss the report in detail, citing court-ordered confidentiality surrounding the auction process.

"Kodak believes that speculation about the details and potential outcome of the auction is inappropriate," spokeswoman Stefanie Goodsell said on Monday.

Bids can rise quickly in bankruptcy auctions. Nortel Networks Inc in 2011 sold its patent portfolio for $4.5 billion after initial bids came in at just $900 million.

Kodak's auction is slated to begin on Wednesday morning.

(Reporting By Nick Brown; Editing by Jacqueline Wong)

• A Permanent Economic Emergency