FUEL TECH, INC. Expired Patents
11 granted patents the USPTO lists as expired; the status gives the reason, newest filing first, as the USPTO Open Data Portal records them; the company is the first-named applicant. The application number opens the full record at Patent Center.
- 2020-08-21: Application 16999687; Invention Removal of Selenium from Water with Kaolinite; Applicant FUEL TECH, INC.; Status Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362.
- 2017-08-01: Application 15665564; Invention DEPOSIT CONTROL FOR A BLACK LIQUOR RECOVERY BOILER; Applicant Fuel Tech, Inc.; Status Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362.
- 2016-09-22: Application 15272479; Invention Process and Apparatus for Reducing Acid Plume; Applicant Fuel Tech, Inc.; Status Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362.
- 2016-05-24: Application 15162882; Invention Process for Hydrochloric Acid Mediation; Applicant Fuel Tech, Inc.; Status Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362.
| Filed | Application | Invention | Applicant | Status | Granted | Patent | Published as | Inventor name | Inventor country | Examiner |
|---|---|---|---|---|---|---|---|---|---|---|
| 2020-08-21 | 16999687 | Removal of Selenium from Water with Kaolinite | FUEL TECH, INC. | Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 | 2022-05-17 | 11332388 | US20210053845A1 | Mingming Fang Heng Wang | United States United States | BARRY, CHESTER T |
| 2017-08-01 | 15665564 | DEPOSIT CONTROL FOR A BLACK LIQUOR RECOVERY BOILER | Fuel Tech, Inc. | Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 | 2021-05-18 | 11008704 | US20190040577A1 | Chrstopher R. Smyrniotis Ian Saratovsky Edward G. Schaub Scott Bohlen | United States United States United States United States | MINSKEY, JACOB T |
| 2016-09-22 | 15272479 | Process and Apparatus for Reducing Acid Plume | Fuel Tech, Inc. | Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 | 2019-02-05 | 10197272 | US20170089572A1 | Ian Saratovsky Scott K. Bohlen Chrisopher R. Smyrniotis Kent W. Schulz Emelito P. Rivera | United States United States United States United States United States | GRAVINI, STEPHEN MICHAEL |
| 2016-05-24 | 15162882 | Process for Hydrochloric Acid Mediation | Fuel Tech, Inc. | Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 | 2019-01-01 | 10166507 | US20160263521A1 | Christopher R. Smyrniotis Kent W. Schulz Emelito P. Rivera Ian Saratovsky Vasudeo S. Gavaskar | United States United States United States United States United States | VANOY, TIMOTHY C |
| 2015-09-30 | 14870366 | REDUCING HYDROCHLORIC ACID IN CEMENT KILNS | FUEL TECH, INC. | Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 | 2017-08-01 | 9718025 | US20160016113A1 | Christopher R. Smyrniotis Kent W. Schulz Emelito P. Rivera Ian Saratovsky Vasudeo S. Gavaskar | United States United States United States United States United States | VANOY, TIMOTHY C |
| 2014-12-22 | 14578828 | Process for Sulfur Dioxide, Hydrochloric Acid and Mercury Mediation | Fuel Tech, Inc. | Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 | 2017-10-31 | 9802154 | US20150110698A1 | Christopher R. Smyrniotis Kent W. Schulz Emelito P. Rivera Ian Saratovsky Vasudeo S. Gavaskar | United States United States United States United States United States | SILVERMAN, STANLEY S |
| 2014-08-26 | 14468978 | Ash Compositions Recovered from Coal Combustion Gases Having Reduced Emissions of HCl and/ | FUEL TECH, INC. | Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 | 2016-07-26 | 9399597 | US20140360409A1 | Christopher R. Smyrniotis Kent W. Schulz Emelito P. Rivera Ian Saratovsky Vasudeo S. Gavaskar | United States United States United States United States United States | VANOY, TIMOTHY C |
| 2014-02-26 | 14190451 | Processes, Apparatus, Compositions and Systems for Reducing Emissions of HCl and/ | FUEL TECH, INC. | Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 | 2016-07-19 | 9393518 | US20140314650A1 | Christopher R. Smyrniotis Kent W. Schulz Emelito P. Rivera Ian Saratovsky Vasudeo S. Gavaskar | United States United States United States United States United States | VANOY, TIMOTHY C |
| 2013-05-09 | 13890623 | EXTRACTIVE CONTINUOUS AMMONIA MONITORING SYSTEM | FUEL TECH, INC. | Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 | 2014-09-30 | 8848192 | US20130301053A1 | Paul G. Carmignani John M. Boyle Scott M. Mayhew | United States United States United States | NGUYEN, SANG H |
| 2013-04-30 | 13873668 | Dry Processes, Apparatus Compositions and Systems for Reducing Mercury, Sulfur Oxides and HCl | Fuel Tech, Inc. | Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 | 2015-03-31 | 8992868 | US20130294987A1 | Christopher R. Smyrniotis Kent W. Schulz Emelito P. Rivera Mingming Fang Ian Saratovsky | United States United States United States United States United States | VANOY, TIMOTHY C |
| 2013-04-01 | 13854361 | Dry Processes, Apparatus, Compositions and Systems for Reducing Sulfur Oxides and HCl | Fuel Tech, Inc. | Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 | 2014-12-23 | 8916120 | US20130336868A1 | Christopher R. Smyrniotis Kent W. Schulz Emelito P. Rivera Mingming Fang Ian Saratovsky | United States United States United States United States United States | VANOY, TIMOTHY C |
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