Assignee
LANGFORD FREDERICK
4 granted patents·321 citations·filing 1989–2004
Top patents by PatentIndex Score
4 records- 0186US5011134AWaterslide with uphill run and flotation device thereforLANGFORD FREDERICK·Filed 1990·Granted Apr 30, 1991·132 cites·12 claims
- 0284US5020465ACoupleable flotation apparatus forming lines and arraysLANGFORD FREDERICK·Filed 1989·Granted Jun 4, 1991·85 cites·26 claims
- 0383US5230662AWaterslide with uphill run and flotation device thereforLANGFORD FREDERICK·Filed 1991·Granted Jul 27, 1993·98 cites·20 claims
- 0462US7066821B2Waterslide with level equalization conduits coupling between run-out lanesLANGFORD FREDERICK·Filed 2004·Granted Jun 27, 2006·6 cites·6 claims
Join the waitlist — get patent alerts
Get an alert when LANGFORD FREDERICK files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →