By default, we use "strict" ref labels, which means that we look more narrowly to reduce the number of false alarms. The most significant restriction is that we require a ref label to have at least 3 digits. You can turn off strict ref labels on your account page to have Patent Bots look more broadly and recognize the following as ref labels:

• Two digits: 12
• With parentheses: 101(a)
• With a period: 101.1

Doing so may increase the number of false alarms, such as recognizing 802.11b (a common wireless networking standard) as a ref label.