A doctor connected to a new anthrax investigation applied for a biohazard patent shortly after the first of the 2001 anthrax attacks.
In his application, Doctor Kenneth Berry described the likely threat of chemical or biological attacks, both foreign or domestic, as he made the case for his new biohazard tracking system.
That's according to the Patent and Trademark Office Web site.
Berry is a bio-terrorism expert who once advocated the distribution of anthrax vaccine. He's also the founder of a company that trains medical professionals to respond to chemical and biological attacks.
The mayor of Wellsville, New York, says investigators have finished their search of two homes listed as Berry's past and present addresses. Federal agents investigating the deadly anthrax attacks have also searched his parents' summer home in New Jersey.
The patent filing said Berry's system could quickly locate and identify biological agents to allow a "rapid response." He was awarded the patent earlier this year.