For the Inventor, By the Inventor

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Providence, RI, United States of America

Marshall and Williams Company

USPTO Granted Patents = 25

Forward Citations = 195

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16 inventors (with patents filed for the assignee):

Christopher Eugene Hosmer (5 out of 14 patents)

Hans H Richter (5 out of 8 patents)

Kenneth M Cavanagh (4 out of 8 patents)

4. Glenn Howard Curtis (3 out of 3 patents)

5. John Sherman Harrington (3 out of 3 patents)

6. Henry Parrillo (3 out of 3 patents)

7. John F Whaley (2 out of 2 patents)

8. Philip M Witkin (2 out of 3 patents)

9. Floyd H Wyman (2 out of 5 patents)

10. Robert S Simmons (1 out of 1 patent)

11. James P Unger (1 out of 1 patent)

12. Thomas G Pettigrew (1 out of 1 patent)

13. Theodore Robert Coburn (1 out of 3 patents)

14. James Edward Kilcoyne (1 out of 1 patent)

15. John G Williamson, Jr (1 out of 1 patent)

25 patents: Sort by Forward Citations

1. 5797172 - Tenter frame and method (1998-08-25),

2. 5613284 - Tenter assembly and method (1997-03-25),

3. 5351416 - Clean air oven with heat recovery and method (1994-10-04),

4. 5081751 - Apparatus for limiting the movement of tenter frame rails (1992-01-21),

5. 5067214 - Tenter frame apparatus and method (1991-11-26),

6. 4949438 - Tenter clip with replaceable bushings (1990-08-21),

7. 4926529 - Tenter frame apparatus and method (1990-05-22),

8. 4896405 - Tenter clip (1990-01-30),

9. 4810179 - Force indicator for casting machines (1989-03-07),

10. 4787835 - Nip indicator for casting machines (1988-11-29),

11. 4620844 - Tenter chain (1986-11-04),

12. 4515313 - Air knife apparatus (1985-05-07),

13. 4497096 - Tenter frame drive and method (1985-02-05),

14. 4435909 - Automatic lint screen (1984-03-13),

15. 4343439 - Narrow fabric blocker (1982-08-10),

Marshall and Williams Company is a leading provider of industrial equipment and supplies. With over 50 years of experience, we offer a wide range of products including machinery, tools, safety equipment, and more. Our commitment to quality and customer satisfaction has made us a trusted partner for businesses in various industries. Visit our website to learn more about our products and services.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 16 2025

25 Patents

#15 in Providence, RI

#65 in Rhode Island

#12,914 in US

#24,929 in the World

Providence, RI, United States of America

Marshall and Williams Company

Forward Citations = 195

16 inventors:

Christopher Eugene Hosmer (5 out of 14 patents)

Hans H Richter (5 out of 8 patents)

Kenneth M Cavanagh (4 out of 8 patents)

4. Glenn Howard Curtis (3 out of 3 patents)

5. John Sherman Harrington (3 out of 3 patents)

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