Note that the patent gives a more vague reference to the couplers, but data on the mixing of the solutions. The actual couplers are listed here in the PDF along with the developers needed (CD-3 and CD-6)

http://www.apug.org/forums/forum40/6...e-film-94.html

There will be differences between the patent and the actual current process as it was still being tweaked at the time the patent was filed. It should be close enough to give quite good results though.

PE