5496720: Parthenogenic oocyte activation

A search for somatic cell found 185 patents; somatic cell, nuclear transfer found 187; nuclear transfer alone found the two above and one other, having to do with algae.

I tried a Boolean search for somatic cell AND Robl, extending back before 1995, and found one more:

5057420 : Bovine nuclear transplantation

Here's the text of Patent 5,496,720