Inventor

HOTTOVY JOHN D

US85 patents

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

HOTTOVY JOHN D

CHEVRON PHILLIPS CHEMICAL CO

Pumping apparatus for slurry polymerization in loop reactors

Pressure management for slurry polymerization

Polymerization product pressures in olefin polymerization

Elbow and horizontal configurations in a loop reactor

Energy efficient polyolefin process

Energy efficient polyolefin process

Process and apparatus for separating polymer solids, hydrocarbon fluids, and purge gas

Polymer transfer within a polymerization system

Monovinylarene/conjugated diene copolymers having lower glass transition temperatures

Process for producing polyolefins

Pumping apparatus and process for polymerization in loop reactors

Pumping apparatus and process for polymerization in loop reactors

Process and apparatus for reducing take-off valve plugging in a polymerization process

Continuous withdrawal from high solids slurry polymerization

Multiple component feed methods and systems

Polymer transfer within a polymerization system

Pressure management for slurry polymerization

Energy efficient polyolefin process

Polymerization product pressures in olefin polymerization

Elbow and horizontal configurations in a loop reactor

Pressure management for slurry polymerization

Continuous take off technique and pressure control of polymerization reactors

System and method for deinventory of polymerization reactor

Apparatus and method for removing polymer solids from slurry loop reactor

Large catalyst activator

PHILLIPS PETROLEUM CO

High solids slurry polymerization

Diluent slip stream to give catalyst wetting agent

Polymer recovery process

Apparatus and method for producing ethylene polymer

Diluent recycle process

Process for treating fluid streams

Apparatus for maintaining unreacted monomer concentration in a polymerization reactor

Flash gas sampling for polymerization reactions

Polymer slurry catalyst residue deactivation

Automatic control of a multiple-effect evaporator

High solids slurry polymerization using heat exchange to condense the flashed diluent

High polymer solids slurry polymerization employing 1-olefin comonomer

Metallocene production process

CHEVRON PHILLIPS CHEMICAL CO LP

Component separations in polymerization

Flashline heater system and method

Flashline heater system and method

Energy efficient polyolefin process

Pressure control to reduce pump power fluctuations

HOTTOVY JOHN D

Flashline heater system and method

Compressible liquid diluent in polyolefin polymerization

Ethylene recovery by absorption

System and method for closed relief of a polyolefin loop reactor system

Ethylene separation

MCELVAIN ROBERT R

Energy efficient polyolefin process

CHEVON PHILLIPS CHEMICAL COMPA

Slurry polymerization reactor having large length/diameter ratio