シー．マークルラルフ

发表

The method for protecting an executable computer program from using unauthorized

シー．マークルラルフ, 1998 .

System for controlling the use and distribution of digital works having a fee notification mechanism

ジェイ．ステフィックマーク, シー．マークルラルフ, エル．ティー．ピロリピーター, 1995 .

System for controlling distribution and use of digital work having charge notice mechanism and charge notice method

Peter L. T. Pirolli, Ralph C. Merkle, ジェイ．ステフィックマーク, 1995 .

Duplicate preparing method capable of authentication

Dan S. Bloomberg, John Seely Brown, Ralph C. Merkle, 1992 .