Assignee
JOHNSTON ENG LTD
GB·7 granted patents·152 citations·filing 1987–1994
Top patents by PatentIndex Score
7 records- 0172US5477882AHydraulic systemsJOHNSTON ENG LTD·Filed 1994·Granted Dec 26, 1995·21 cites·3 claims
- 0266US5044887ABlower fan impellersJOHNSTON ENG LTD·Filed 1989·Granted Sep 3, 1991·24 cites·13 claims
- 0362US5056615AVehicle control systemJOHNSTON ENG LTD·Filed 1990·Granted Oct 15, 1991·28 cites·19 claims
- 0461US5419006AExhauster fan systemsJOHNSTON ENG LTD·Filed 1993·Granted May 30, 1995·26 cites·5 claims
- 0555US4773119ARoad sweeping vehiclesJOHNSTON ENG LTD·Filed 1987·Granted Sep 27, 1988·20 cites·6 claims
- 0654US4779303ARoad sweeping vehiclesJOHNSTON ENG LTD·Filed 1987·Granted Oct 25, 1988·20 cites·10 claims
- 0739US4903368ARoad sweeping vehiclesJOHNSTON ENG LTD·Filed 1989·Granted Feb 27, 1990·13 cites·6 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →