Jürgen Betten
"Patent Protection of Computer Programs"
UNION Congress Bullettin 26, 1999, 103-115

Dr. Alexander Esslinger / Markus Hössle
"Zur Entscheidung "State Street v. Signature Financial" des amerikanischen Court of Appeals for the Federal Circuit"
Mitteilungen der deutschen Patentanwälte, 1999, 327-329

Jürgen Betten
"Patenting of Computer Software – The Practice of Patent Protection of Computer Software in Germany",
Speech held at the IBC Conference, Munich, March 18, 1999

Jürgen Betten / Michael Resch
"Computer Law in EU and Germany"
Patents & Licensing, April 1999, 34-35

Jürgen Betten
"Patentability of Software"
Speech held at the LES European Conference in Venice, September 22-25, 1999

Jürgen Betten / Michael Resch
"Computer Program Claims are Allowable in EU"
Patents & Licensing, October 1999, 28-29

Jürgen Betten
"Could Business Methods be a Subject Matter of Patent?"
Speech held at the SOFTIC Symposium '99, Tokyo, December 1, 1999