Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Clive Sleath — 3 Patents

FPFisons Plc: 3 patents #25 of 140Top 20%
Mountsorrel, GB: #4 of 6 inventorsTop 70%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Clive Sleath has been granted 3 US patents while listed as an inventor at Fisons Plc. The first was granted in 1997 and the most recent in August 2000. Clive Sleath ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Clive Sleath in Mountsorrel, GB.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6109261 Powder inhaler with breath flow regulation valve Alastair Robert Clarke, Michael T. Shepherd 2000-08-29
5727546 Powder inhaler with breath flow regulation valve Alastair Robert Clarke, Michael T. Shepherd 1998-03-17
5670167 Process for the production of medicament formulations Paul Manuel Anson, Hugh William Dyson 1997-09-23