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For the Inventor, By the Inventor

Pittsburgh, PA, United States of America

Dravo Lime Company


USPTO Granted Patents = 28


Trademarks = 1

Forward Citations = 304

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30 inventors (with patents filed for the assignee):

goldMedal John W College (13 out of 30 patents)

silverMedal Lewis B Benson (7 out of 9 patents)

bronzeMedal Shiaw C Tseng (5 out of 5 patents)

4.  Manyam Babu (4 out of 5 patents)

5.  Yungli J Lee (4 out of 4 patents)

6.  Donald H Stowe, Jr (3 out of 3 patents)

7.  Daniel W Berisko (2 out of 3 patents)

8.  Charles J Muzik (2 out of 2 patents)

9.  Kenneth L Yoest (2 out of 2 patents)

10.  Russell C Forsythe (2 out of 2 patents)

11.  Kenneth L Hardee (1 out of 35 patents)

12.  Marilyn J Niksa (1 out of 21 patents)

13.  Ronald J Rathi (1 out of 2 patents)

14.  Edward M Halko (1 out of 4 patents)

15.  Lynne M Ernes (1 out of 22 patents)


28 patents:

1. 6033577 - Coordination of liquid-solid separators and fluid tanks (2000-03-07),
2. 5846286 - Method for removing NO.sub.x from a gas stream while producing an (1998-12-08),
3. 5827488 - Process for removing SO.sub.2 and NO.sub.x from a gaseous stream (1998-10-27),
4. 5817283 - Method for removing sulfur dioxide and nitrogen oxides from combustion (1998-10-06),
5. 5785841 - Method of removing sulfur dioxide and nitrogen oxides from a gaseous (1998-07-28),
6. 5769940 - Process for producing cement and elemental sulfur from a flue gas (1998-06-23),
7. 5766339 - Process for producing cement from a flue gas desulfurization process (1998-06-16),
8. 5705051 - Electrochemical process (1998-01-06),
9. 5695727 - Process for removing sulfur dioxide and nitrogen oxides from a hot (1997-12-09),
10. 5683666 - Method for the removal of sulfur dioxide and nitrogen oxides for a (1997-11-04),
11. 5645807 - Magnesium-enhanced sulfur dioxide scrubbing with gypsum formation (1997-07-08),
12. 5628811 - Method of ameliorating acid soil to enhance plant growth (1997-05-13),
13. 5614158 - Process for removing sulfur dioxide from gases and producing gypsum and (1997-03-25),
14. 5403568 - Horizontal wet scrubbing apparatus and method for removing sulfur (1995-04-04),
15. 5384111 - Magnesium-enhanced lime scrubbing of sulfur dioxide with production of a (1995-01-24),
Dravo Lime Company is a leading supplier of high-quality lime products for industrial and agricultural applications. With a history dating back over 100 years, we pride ourselves on our commitment to quality, sustainability, and customer satisfaction. Our products are used in various industries, including steel manufacturing, water treatment, and agriculture. We offer a wide range of lime products to meet the diverse needs of our customers.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 9 2025

28 Patents

#68 in Pittsburgh, PA

#440 in Pennsylvania

#11,597 in US

#22,547 in the World

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Pittsburgh, PA, United States of America

Dravo Lime Company

Forward Citations = 304

30 inventors:

goldMedal John W College (13 out of 30 patents)

silverMedal Lewis B Benson (7 out of 9 patents)

bronzeMedal Shiaw C Tseng (5 out of 5 patents)

4.  Manyam Babu (4 out of 5 patents)

5.  Yungli J Lee (4 out of 4 patents)

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