For the Inventor, By the Inventor

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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)

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),

Autoclave Engineers, Ltd. is a leading global manufacturer and supplier of high-pressure equipment and systems used in a wide range of industries. With over 75 years of experience, Autoclave Engineers offers a comprehensive line of products including high-pressure valves, fittings, tubing, pumps, and reactors. They provide reliable solutions for applications in oil and gas, chemical, petrochemical, pharmaceutical, research, and other sectors. Autoclave Engineers is known for its commitment to quality, innovation, and customer satisfaction. For more information, please visit their official website.

This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Sep 29 2026

33 Patents

#2 in Erie, PA

#372 in Pennsylvania

#10,288 in US

#20,112 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)

Please report any incorrect information to [email protected]

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