Just found myself thinking about all the companies Kramer has sued during the series. Didn't get beyond two, but I'm pretty sure I've seen Jacky Chiles more than that.
These are the two I remember * Starbucks (or similar company), for serving too hot coffee. Settlement: free coffee for life (or a pretty long period) * Tobacco industry, for making his face look old. Settlement: Kramer as Marlboro man at Times Square.