For the Inventor, By the Inventor

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Lisle, IL, United States of America

The Lockformer Company

USPTO Granted Patents = 10

Forward Citations = 120

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13 inventors (with patents filed for the assignee):

Ashok M Shah (2 out of 8 patents)

Robert R Heilman (2 out of 2 patents)

Rudolph A Rom (2 out of 2 patents)

4. Gary L Dickinson (1 out of 5 patents)

5. Richard Frank Blum (1 out of 7 patents)

6. Rick Blum (1 out of 1 patent)

7. Howard J McElroy (1 out of 3 patents)

8. Billy J Bauscher (1 out of 5 patents)

9. Quinn C Smith (1 out of 1 patent)

10. Marshall John Ryan (1 out of 1 patent)

11. Leo R Gale (1 out of 1 patent)

12. Ronald A Anderson (1 out of 1 patent)

13. Elmars H Viesturs (1 out of 1 patent)

10 patents: Sort by Forward Citations

1. 6311534 - Sheet metal bending apparatus (2001-11-06),

2. 6038825 - Insulated glass window spacer and method for making window spacer (2000-03-21),

3. 5381713 - Glass scoring mechanism (1995-01-17),

4. 4599925 - Fiberboard cutting system (1986-07-15),

5. 4466641 - Duct connecting system (1984-08-21),

6. 4406199 - Apparatus for making collars having an integral notcher (1983-09-27),

7. 4353232 - Apparatus for making corrugated tubing and method for joining corrugated (1982-10-12),

8. 4275707 - Ventilating system collar with lock means (1981-06-30),

9. 4228672 - Rotary notcher and former (1980-10-21),

10. 4045989 - Sheet metal bending apparatus (1977-09-06),

The Lockformer Company is a leading manufacturer of sheet metal forming machinery and HVAC equipment. With a history of innovation and quality, Lockformer has been a trusted name in the industry for over 75 years. Their products include formers, folders, and plasma cutting systems, designed to meet the needs of sheet metal contractors and fabricators.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

10 Patents

#17 in Lisle, IL

#1,397 in Illinois

#28,938 in US

#54,238 in the World

Lisle, IL, United States of America

The Lockformer Company

Forward Citations = 120

13 inventors:

Ashok M Shah (2 out of 8 patents)

Robert R Heilman (2 out of 2 patents)

Rudolph A Rom (2 out of 2 patents)

4. Gary L Dickinson (1 out of 5 patents)

5. Richard Frank Blum (1 out of 7 patents)

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