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Glenview, IL, United States of America

Imperial Clevite Inc.

USPTO Granted Patents = 49

Trademarks = 2

Forward Citations = 982

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42 inventors (with patents filed for the assignee):

Leonard J Kowal (9 out of 12 patents)

Ojars Maldavs (6 out of 16 patents)

Albert J Schwarz (6 out of 11 patents)

4. Emile M Shtarkman (6 out of 8 patents)

5. Abel E Kolchinsky (4 out of 8 patents)

6. Shaukat A Kazi (4 out of 4 patents)

7. Daniel S Snyder (3 out of 8 patents)

8. David E Dyke (2 out of 4 patents)

9. Wayne A Kruper (2 out of 4 patents)

10. Timothy C Benincasa (2 out of 2 patents)

11. Ralph R Green (2 out of 2 patents)

12. Kenneth J Adams (2 out of 3 patents)

13. Martin David Smalc (1 out of 37 patents)

14. Kenneth T Brady (1 out of 2 patents)

15. Richard V Strybel (1 out of 8 patents)

Core Competencies:

Heat Treating

Coating Application

Hydraulic Valve

Quick Disconnect

Spring Damper

Vibration Resistance

Piezoelectric Power Supply

Electroplating Cell

Tube Bender

Flexible Circuit

Wear Resistance

Fluid Coupling

49 patents: Sort by Forward Citations

1. 4734967 - Method of heat treating bearing materials (1988-04-05),

2. 4624860 - Method of applying a coating to a metal substrate using brazing material (1986-11-25),

3. 4621842 - Releasable push-to-connect tube fitting (1986-11-11),

4. 4611632 - Hydraulic solenoid valve structure (1986-09-16),

5. 4598896 - Quick disconnect coupling (1986-07-08),

6. 4595218 - Insulative coupling (1986-06-17),

7. 4587177 - Cast metal composite article (1986-05-06),

8. 4586977 - Method of bonding a high temperature resistant polymeric material to an (1986-05-06),

9. 4577842 - Self-stabilizing dry viscous spring damper (1986-03-25),

10. 4560150 - Dry viscous spring strut (1985-12-24),

11. 4556242 - Vibration resistant high pressure tube fitting (1985-12-03),

12. 4555294 - Inorganic composition adapted for use in bonding a high temperature (1985-11-26),

13. 4555098 - Self-stabilizing dry viscous spring damper (1985-11-26),

14. 4544128 - Cartridge solenoid valve with manual override (1985-10-01),

15. 4540154 - Solenoid valve (1985-09-10),

Imperial Clevite Inc., based in Glenview, IL, specializes in advanced manufacturing solutions across various technology domains. The company is recognized for its expertise in heat treating, bearing materials, and coating applications, which are critical for enhancing the performance and longevity of mechanical components. Additionally, Imperial Clevite develops innovative products such as hydraulic solenoid valves, quick disconnect couplings, and high-temperature resistant polymers, contributing to diverse industries with a focus on reliability and efficiency.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

49 Patents

#7 in Glenview, IL

#397 in Illinois

#7,133 in US

#14,256 in the World

Glenview, IL, United States of America

Imperial Clevite Inc.

Forward Citations = 982

42 inventors:

Leonard J Kowal (9 out of 12 patents)

Ojars Maldavs (6 out of 16 patents)

Albert J Schwarz (6 out of 11 patents)

4. Emile M Shtarkman (6 out of 8 patents)

5. Abel E Kolchinsky (4 out of 8 patents)

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