Individual holder
RICHARDS JOHN A
US·5 granted patents·160 citations·filing 1971–2003
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
5 records- 0190US4281280AThermal electric converterRICHARDS JOHN A·Filed 1978·Granted Jul 28, 1981·52 cites·36 claims
- 0285US4335733AValve for use in handling abrasive materials and method of wear preventionRICHARDS JOHN A·Filed 1979·Granted Jun 22, 1982·38 cites·27 claims
- 0380US8688461B1Electronic registry for authenticating transferable recordsRICHARDS JOHN A·Filed 2003·Granted Apr 1, 2014·34 cites·17 claims
- 0480US4036564AConcrete pumping apparatusRICHARDS JOHN A·Filed 1971·Granted Jul 19, 1977·33 cites·21 claims
- 0533US4384659AApparatus and method for pumping powdered materialRICHARDS JOHN A·Filed 1978·Granted May 24, 1983·3 cites·18 claims
Join the waitlist — get patent alerts
Get an alert when RICHARDS JOHN A 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 →