Novell and Red Hat ask community help in patent case

In the United States, under current patent law, for patents filed on or after June 8, 1995, the term of the patent is 20 years from the earliest claimed filing date. For patents filed prior to June 8, 1995, the term of patent is either 20 years from the earliest claimed filing date or 17 years from the issue date, whichever is longer. Extensions may also be had for various administrative delays. (See: Term of patent in the United States). The exact date of termination may be zealously litigated, especially where daily profits from a patent amount to millions of dollars, e.g., pharmaceuticals.