Elliptic curves, patent status?

[Dan Bailey]

On Mon, 27 Nov 1995 23:16:10 -0800 jamesd at echeque.com wrote:

>At 05:16 PM 11/28/95 -0400, Michael Smith wrote:
>>
>> I'm unclear about the patent status of elliptic curve 
>> systems. Are they covered by the Diffie-Hellman patent? 
>> That is, is the lnguage of this patent broad enough to 
>> cover _all_ public-key systems, regardless of their 
>> mathematical basis? 
>
>No, but RSA will litigate you with the objective of
>inflicting extravagant legal costs regardless.

Does the patent create any headaches for elliptic curve research or
publishing elliptic curve papers, or just for new products?
						Dan