Vancouver, Canada

Douglas R Bull

This inventor holds 4 USPTO granted patents and 1 published patent application, plus 1 CIPO patent and 1 EPO patent. Top assignees: Aries Gasification, LLC, Phg Energy, LLC. Active years: 2016-2020.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Douglas R Bull. Retrieved from https://idiyas.com/inventor/douglas-r-bull

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 4 

% Patents Active = 100.0


 

Average Co-Inventor Count = 5.4

ph-index = 1

Forward Citations = 2(Granted Patents)


Company Filing History:


Years Active: 2016-2020

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4 patents (USPTO):Explore Patents

Title: Douglas R Bull: Innovator in Gasification Technology

Introduction

Douglas R Bull is a prominent inventor based in Vancouver, Canada. He has made significant contributions to the field of gasification technology, particularly in the gasification of biosolids. With a total of 4 patents to his name, Bull's work focuses on improving the efficiency and effectiveness of biogasification processes.

Latest Patents

One of Bull's latest patents is a gasification reactor with a pipe distributor. This large-scale fluidized bed biogasifier is designed for gasifying biosolids. The biogasifier features a reactor vessel equipped with a pipe distributor and multiple fuel feed inlets. It allows for the feeding of biosolids at a desired fuel feed rate exceeding 40 tons per day, with an average of about 100 tons per day during steady-state operation. The fluidized bed in the reactor vessel has a cross-sectional area proportional to the targeted fuel feed rate, ensuring a superficial gas velocity between 0.1 m/s (0.33 ft/s) and 3 m/s (9.84 ft/s). In operation, biosolids are heated within the reactor to temperatures ranging from 900°F (482.2°C) to 1600°F (871.1°C).

Another notable patent is for a gasification reactor with a discrete reactor vessel and grate. This fluidized bed biogasifier also focuses on gasifying biosolids. It includes a reactor vessel and a feeder for introducing biosolids at a desired feed rate. The fluidized bed in this reactor is designed similarly, maintaining a superficial gas velocity between 0.1 m/s (0.33 ft/s) and 3 m/s (9.84 ft/s). The method involves feeding biosolids into the reactor and applying oxidant gases to produce a superficial velocity of producer gas within the same range. The biosolids are heated in an oxygen-starved environment, achieving temperatures between 900°F (482.2°C) and 1700°F (926.7°C) to facilitate gasification.

Career Highlights

Throughout his career, Douglas R Bull has worked with several companies, including Aries Gasification, LLC and Phg Energy, LLC. His expertise in gasification technology has positioned him as a key player in the development of innovative solutions for biosolid management.

Collaborations

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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