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For the Inventor, By the Inventor

Balcatta, Australia

Orbital Engine Company Proprietary Limited


USPTO Granted Patents = 35

Trademarks = 1

Forward Citations = 438

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25 inventors (with patents filed for the assignee):

goldMedal Michael L McKay (14 out of 15 patents)

silverMedal Christopher K Schlunke (8 out of 13 patents)

bronzeMedal Christopher N Sayer (5 out of 11 patents)

4.  Peter W Ragg (5 out of 5 patents)

5.  Darren A Smith (4 out of 11 patents)

6.  Mark Lear (3 out of 4 patents)

7.  Sam R Leighton (3 out of 8 patents)

8.  Ian R Thompson (3 out of 7 patents)

9.  Roy S Brooks (3 out of 3 patents)

10.  Kenneth P Seeber (3 out of 5 patents)

11.  Steven R Ahern (2 out of 8 patents)

12.  Wayne Ross Gilbert (2 out of 2 patents)

13.  Robert M Davis (2 out of 7 patents)

14.  Tony R Sarich (2 out of 5 patents)

15.  John W Koch (2 out of 2 patents)


Core Competencies:
Fuel Injection
Nozzles
Metering
Internal Combustion Engines
Two Stroke Cycle
Direct Fuel Injection
Gas Injection
Exhaust Gas Treatment
Multi-Cylinder Engines
Fuel Delivery
Control of Fuelling Rate
Liquid Metering

35 patents:

1. 5150836 - Method of fuel injection (1992-09-29),
2. 5090625 - Nozzles for in-cylinder fuel injection systems (1992-02-25),
3. 5024202 - Metering of fuel (1991-06-18),
4. 4949689 - Timing of fuel injected engines (1990-08-21),
5. 4938178 - Two stroke cycle internal combustion engines (1990-07-03),
6. 4936279 - Pressurizing a gas injection type fuel injection system (1990-06-26),
7. 4934329 - Fuel injection system for a multi-cylinder engine (1990-06-19),
8. 4926806 - Two-fluid fuel injected engines (1990-05-22),
9. 4924820 - Exhaust gas treatment for a two stroke engine (1990-05-15),
10. 4920745 - Internal combustion engines (1990-05-01),
11. 4886021 - Multi-cylindered two stroke cycle engines (1989-12-12),
12. 4867128 - Fuel injection nozzle (1989-09-19),
13. 4844339 - Fuel injection apparatus (1989-07-04),
14. 4844040 - Engines (1989-07-04),
15. 4841942 - Method and apparatus for metering fuel (1989-06-27),
Company Overview
Orbital Engine Company Proprietary Limited, based in Balcatta, Australia, specializes in advanced engine technologies and innovative propulsion systems. The company focuses on developing high-performance engines for various applications, including automotive and aerospace sectors. With a strong emphasis on research and development, Orbital aims to enhance engine efficiency and reduce emissions, contributing to sustainable transportation solutions. Their expertise in engineering and technology positions them as a key player in the evolving landscape of engine design and manufacturing.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 13 2026

35 Patents

#2 in Balcatta

#91 in Australia

#19,168 in the World

Balcatta, AU
Balcatta, Australia

Orbital Engine Company Proprietary Limited

Forward Citations = 438

25 inventors:

goldMedal Michael L McKay (14 out of 15 patents)

silverMedal Christopher K Schlunke (8 out of 13 patents)

bronzeMedal Christopher N Sayer (5 out of 11 patents)

4.  Peter W Ragg (5 out of 5 patents)

5.  Darren A Smith (4 out of 11 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Orbital Engine Company Proprietary Limited. Retrieved from https://idiyas.com/company/orbital-engine-company-proprietary

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

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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