返回判决日期2002年4月29日颁布当局联邦上诉法院颁布当局的级别上诉审程序类型司法(民事)主题专利(发明)原告/上诉人Baker Petrolite Corporation, Petrolite Holdings Inc., Baker Hughes Canada Company被告/被上诉人Canwell Enviro-Industries Ltd., Clive Titley, and The City of Medicine Hat关键词
Claim construction,
Disclosure,
Anticipation (Novelty),
Oil and gas,
Industrial chemicals