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Erie, PA, United States of America

Autoclave Engineers, Ltd.

USPTO Granted Patents = 33

Trademarks = 1

Forward Citations = 722

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23 inventors (with patents filed for the assignee):

Charles W Smith (18 out of 20 patents)

Franz X Zimmerman (12 out of 13 patents)

Robert F Ruyak (11 out of 11 patents)

4. Larry R Rosio (4 out of 9 patents)

5. William H Walker (4 out of 4 patents)

6. Stephen H Shore (3 out of 6 patents)

7. Theodore R Silver (3 out of 4 patents)

8. Richard K Reber (2 out of 6 patents)

9. Stephen G Ratkowski (2 out of 2 patents)

10. Albert E Straus (1 out of 18 patents)

11. Thomas B Stanford (1 out of 6 patents)

12. Richard J Mielnik (1 out of 2 patents)

13. John A Metalonis (1 out of 2 patents)

14. Francis V Marchal (1 out of 4 patents)

15. James A Karle (1 out of 1 patent)

Core Competencies:

Precision Cleaning

Supercritical Cleaning

Ultrasonic Energy

Vacuum Sintering

Hot Isostatic Pressing

Magnetically Actuated Valve

Autoclave Furnace

Cooling System

Gas/Oil Separator

High Pressure Autoclave

Graphite Heating Element

Centrifugal Pump

33 patents: Sort by Forward Citations

1. 5417768 - Method of cleaning workpiece with solvent and then with liquid carbon (1995-05-23),

2. 5377705 - Precision cleaning system (1995-01-03),

3. 5355901 - Apparatus for supercritical cleaning (1994-10-18),

4. 5337446 - Apparatus for applying ultrasonic energy in precision cleaning (1994-08-16),

5. 4778150 - Non-rotating stem valve (1988-10-18),

6. 4532984 - Rapid cool autoclave furnace (1985-08-06),

7. 4509179 - Vacuum sintering and hot isostatic pressing in the same vessel (1985-04-02),

8. 4487557 - Magnetically driven centrifugal pump (1984-12-11),

9. 4466276 - Consistometer (1984-08-21),

10. 4402715 - Gas/oil separator (1983-09-06),

11. 4384703 - Handle for magnetically actuated valve (1983-05-24),

12. 4382578 - Magnetically actuated rising stem valve (1983-05-10),

13. 4327892 - Normally magnetically actuated valve with novel nonmagnetic override (1982-05-04),

14. 4325914 - Laboratory pressure vessel (1982-04-20),

15. 4296912 - Magnetically actuated metering valve (1981-10-27),

Company Overview

Autoclave Engineers, Ltd. specializes in the design and manufacture of high-performance autoclaves and related equipment, serving various industries including aerospace, automotive, and medical sectors. The company is recognized for its innovative solutions that enhance manufacturing processes and ensure product quality. With a strong focus on research and development, Autoclave Engineers is committed to advancing technology in pressure vessel systems and thermal processing, contributing to efficiency and safety in industrial applications.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

33 Patents

#2 in Erie, PA

#372 in Pennsylvania

#10,309 in US

#20,162 in the World

Erie, PA, United States of America

Autoclave Engineers, Ltd.

Forward Citations = 722

23 inventors:

Charles W Smith (18 out of 20 patents)

Franz X Zimmerman (12 out of 13 patents)

Robert F Ruyak (11 out of 11 patents)

4. Larry R Rosio (4 out of 9 patents)

5. William H Walker (4 out of 4 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Autoclave Engineers, Ltd.. Retrieved from https://idiyas.com/company/autoclave-engineers

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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