Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Christian Riquart — 8 Patents

DBDba: 6 patents #11 of 56Top 20%
BFBendix France: 2 patents #21 of 51Top 45%
Paris, FR: #1,084 of 13,709 inventorsTop 8%
Overall (All Time): #600,572 of 4,157,543Top 15%
8 Patents All Time
Christian Riquart has been granted 8 US patents while listed as an inventor at Dba. The first was granted in 1981 and the most recent in January 1989. Christian Riquart ranks #600,572 of 4,157,543 US inventors in our database (top 14.4%). Patent records list Christian Riquart in Paris, FR.

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
4798127 Tandem brake pressure control valve with pressure-failure-compensating parallel piston Roland Levrai, Pascal Picot 1989-01-17
4709550 Hydraulic assistance device Jean-Paul Sauvee, Roland Levrai 1987-12-01
4671168 Single actuator tandem brake pressure control valve Jean-Paul Sauvee, Roland Levrai 1987-06-09
4614381 Brake-pressure corrector sensitive to deceleration Jean-Paul Sauvee 1986-09-30
4503954 Drum brake with controlled torque and torque control valve for such a brake Gerard Volan, Pierre Pressaco 1985-03-12
4365844 Braking correcting valve for a dual braking circuit Jean-Jacques Carre 1982-12-28
4353599 Braking corrector for double braking circuit Jean-Jacques Carre 1982-10-12
4292883 Wheel cylinder Roland Levrai 1981-10-06