Inventor

JOHNSON HOWARD L

32 patents

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

JOHNSON HOWARD L

CATERPILLAR TRACTOR CO

Control for load sharing pumps

Force balanced valve spool

Load controlled fluid system having parallel work elements

Flow force balanced spool valve

Combination check and flow control valve for hydraulic systems

Cartridge type check valve

Lock valve assembly

Margin valve

Hydraulic system with priority control

Method for assembling a cartridge-type valve

Anti-cavitation and pressure modulating relief valve for controlling hydraulic cylinders

Spring centered balanced resolver valve

Three-pump - three-circuit fluid system of a work vehicle having controlled fluid-combining means

Fluid system of a work vehicle having fluid combining means and signal combining means

Fluid system of a work vehicle having fluid combining means

Fluid filter system

Piston pump assembly having load responsive controls

All hydraulic motor grader circuitry

Low pressure signal driven flow control system

External centering spring adjustment for a spool valve

Power conservation means for variable displacement pump fluid supply system

Load responsive pump controls of a fluid system

BERGER FRANK M

T-Butyl-phenoxy-alkylene esters of benzoic and nicotinic acids, compositions containing same and their antihistaminic method of use

Treatment of allergic conditions using indanyloxy-alkanol derivatives

Phenoxy alkanol esters for treatment of allergic conditions

P-alkyl phenoxy alkanols for the treatment of allergic conditions

P-Alkyl or cycloalkyl phenoxy alkanols and alkanol esters and process for the treatment of allergic conditions

JOHNSON HOWARD L

Self loading multiple bale trailer

Trailer with multiple bale elevating apparatus and method of bale handling

Removable gooseneck for trailers

STANFORD RES INST INT

N-αMethylcyclopropylmethyl derivatives of normorphine and noroodeine, and analgesic compositions and methods employing the normorphine derivatives

N-Sec-alkyl analogs of norcodeine and normorphine and analgesic compositions and methods employing the normorphine derivatives