For the Inventor, By the Inventor

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St. Petersburg, FL, United States of America

Florida Progress Corporation

USPTO Granted Patents = 3

Forward Citations = 92

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7 inventors (with patents filed for the assignee):

Robert A Ashworth (3 out of 15 patents)

Ned B Spake (2 out of 6 patents)

Antonio A Padilla (1 out of 6 patents)

4. Larry A Rodriguez (1 out of 5 patents)

5. William W Berry (1 out of 1 patent)

6. Rae A Schmeda (1 out of 4 patents)

7. W Wes Berry (1 out of 10 patents)

3 patents: Sort by Forward Citations

1. 4652433 - Method for the recovery of minerals and production of by-products from (1987-03-24),

2. 4560391 - Alternative fuel comprised of sewage sludge and a liquid hydrocarbon (1985-12-24),

3. 4477425 - Production of anhydrous hydrogen fluoride from low-grade metallic (1984-10-16),

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USPTO Data Jan 1 1976 - Dec 16 2025

3 Patents

#63 in St. Petersburg, FL

#2,585 in Florida

#71,993 in US

St. Petersburg, FL, United States of America

Florida Progress Corporation

Forward Citations = 92

7 inventors:

Robert A Ashworth (3 out of 15 patents)

Ned B Spake (2 out of 6 patents)

Antonio A Padilla (1 out of 6 patents)

4. Larry A Rodriguez (1 out of 5 patents)

5. William W Berry (1 out of 1 patent)

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