Inventor

DERRIEN MICHEL

FR41 patents

⚠️ This page may combine multiple inventors who share the name “DERRIEN MICHEL”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

DERRIEN MICHEL

MESSIER BUGATTI

Raisable landing gear for heavier-than-air aircraft, in particular for helicopters

Shock absorber for an aircraft landing gear leg

Catch device for locking aircraft landing gear in the raised position

Raisable undercarriage, in particular for a heavy transport aircraft

Adjustable-stroke spring and shock absorber device

Linear actuator, in particular for driving an aircraft landing gear leg

Retractable running gear for a vehicle that is supported without contact

Shock-absorbing actuator for fitting to landing gear of heavier-than-air aircraft, in particular helicopters

Shock absorber for use in lowering aircraft landing gear

Raisable anti-crash shock absorber

Raisable landing gear fitted with a hinged side-brace having two alignments

Device for locking a support for steerable wheels

Suspension assembly for a heavy vehicle, in particular for a tracked vehicle

Shock absorber for aircraft landing gear

Device for steering the wheels at the bottom end of an aircraft landing gear leg

Raisable landing gear

MESSIER HISPANO SA

Aircraft undercarriage of tilting-beam type and of reduced bulk

Aircraft landing gear, in particular for helicopters

Aircraft landing gear

Aircraft landing gear having wheels that swivel while the landing gear is being retracted

Landing gear having tandem wheels and independent shock absorbers

Fuselage landing gear with tandem wheels

Shock absorber with adjustable residual stroke

Landing gear for an aircraft structure

Landing gear for aircraft

Landing gear for aircraft

Device for steering the nose wheel train of an aircraft landing gear

Mechanism for controlling a catapult bar

Rapid extension shock absorber, in particular for carrier-based aircraft

INST FRANCAIS DU PETROLE

Process for producing benzene by hydrodealkylation of a hydrocarbon fraction comprising alkyl-aromatic hydrocarbons, olefinic hydrocarbons and sulfur compounds

Process for the selective hydrogenation of gasolines comprising both gum-generating compounds and undesirable sulfur compounds

Selective hydrogenation process comprising partial separation of hydrogen by a membrane upstream of a reactive column

Hydrogenation and etherification of an unsaturated C5 hydrocarbon cut to increase its octane number and decrease its mono-olefin content

Process for hydrogenating olefins in the presence of ethers

Process for producing 2-methyl-2-butene from a 5 carbon atom olefins cut containing 2-methyl-1-butene and at least one n-pentene

MESSIER HISPANO BUGATTI SA

Nose-wheel type landing gear for aircraft

Tandem type landing gear

MESSIER DOWTY SA

Aircraft landing gear with highly offset strut pivot axis

Aircraft landing gear

MESSIER HASPANO BUGATTI

Rocking beam landing gear

MESSIER ERAM

Laterally-raisable aircraft landing gear