This Press Release officially announces the standardization of the Firewire name by the 1394 Trade Association :
The 1394 Trade Association (TA) and Apple(R) (Nasdaq: AAPL) today announced that the FireWire(R) trademark, logo and symbol have been adopted as a brand identity for the IEEE 1394 connection standard in a no-fee license agreement between the TA and Apple. In addition, Apple has granted the TA the right to sub-license the FireWire Trademark for use on products, packaging and promotion of the standard.
This was first reported in a eeTimes article on May 7, 2002.