ALEXANDRIA, Va., May 27 -- Air Liquide Industrial U.S., Houston, and American Air Liquide, Fremont, California, have been assigned a patent (9,034,407) developed by three co-inventors for a "method and system for treating food items with an additive and solid carbon dioxide." The co-inventors are David C. Braithwaite, Houston, Meenakshi Sundaram, Newark, Delaware, and Vasuhi Rasanayagam, Newark, Delaware.

The patent application was filed on March 7, 2014 (14/201,014). The full-tex . . .