Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
US

Urpo Sten — 3 Patents

KCKone Elevators Co.: 2 patents #12 of 67Top 20%
EGElevator Gmbh: 1 patents #11 of 32Top 35%
Hyvinkää, FI: #71 of 261 inventorsTop 30%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Urpo Sten has been granted 3 US patents while listed as an inventor at Kone Elevators Co.. The first was granted in 1988 and the most recent in January 1989. Urpo Sten ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Urpo Sten in Hyvinkää, FI.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4799139 Voltage regulation for three-phase inverters Matti Kahkipuro, Pekka Nummi, Pekka Hytti 1989-01-17
4742893 Signalling procedure for a lift and a signalling system Matti Otala, Osmo Ivanto, Matti Kahkipuro 1988-05-10
4737900 Method of and apparatus for controlling the braking resistor of a frequency converter Matti Kahkipuro, Harri Hakala, Pekka Nummi 1988-04-12