Assignee
JOHNSTON PIPES LTD
GB·2 granted patents·27 citations·filing 1997–2001
Top patents by PatentIndex Score
2 records- 0149US6089279APipe, a method of constructing the pipe and a method of lining or re-lining a sewer using the pipe as a linerJOHNSTON PIPES LTD·Filed 1997·Granted Jul 18, 2000·18 cites·27 claims
- 0243US6460574B2Sewer pipe structures and their method of constructionJOHNSTON PIPES LTD·Filed 2001·Granted Oct 8, 2002·9 cites·45 claims
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →