Issued Patents All Time
Showing 25 most recent of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9896748 | Low yield ratio dual phase steel linepipe with superior strain aging resistance | Narasimha-Rao Venkata Bangaru, Hyun-Woo Jin, Adnan Ozekcin, Raghavan Ayer, Douglas P. Fairchild +7 more | 2018-02-20 |
| 8691030 | Low alloy steels with superior corrosion resistance for oil country tubular goods | Dylan V. Pugh, Joseph C. Bondos, Shiun Ling, Raghavan Ayer, Shalawn K. Jackson +1 more | 2014-04-08 |
| 8141768 | Application of high integrity welding and repair of metal components in oil and gas exploration, production and refining | Steven J. Ford, Neeraj S. Thirumalai, James R. Rigby, Mark W. Biegler, Narasimha-Rao Venkata Bangaru +3 more | 2012-03-27 |
| 7807098 | Advanced erosion-corrosion resistant boride cermets | Narasimha-Rao Venkata Bangaru, ChangMin Chun, Neeraj S. Thirumalai, Hyun-Woo Jin, John R. Peterson +2 more | 2010-10-05 |
| 7731776 | Bimodal and multimodal dense boride cermets with superior erosion performance | ChangMin Chun, Narasimha-Rao Venkata Bangaru, Neeraj S. Thirumalai, Hyun-Woo Jin, John R. Peterson +3 more | 2010-06-08 |
| 7501090 | Method for protecting metal surfaces utilizing erosion resistant oxide cermets | Narasimha-Rao Venkata Bangaru, ChangMin Chun, Hyun-Woo Jin, John R. Peterson, Robert Lee Antram +1 more | 2009-03-10 |
| 7438741 | Erosion-corrosion resistant carbide cermets for long term high temperature service | Narasimha-Rao Venkata Bangaru, ChangMin Chun, Neeraj S. Thirumalai, Shiun Ling, Hyun-Woo Jin +3 more | 2008-10-21 |
| 7431777 | Composition gradient cermets and reactive heat treatment process for preparing same | ChangMin Chun, Narasimha-Rao Venkata Bangaru, Hyun-Woo Jin, John R. Peterson, Robert Lee Antram +1 more | 2008-10-07 |
| 7407082 | Advanced erosion resistant carbonitride cermets | ChangMin Chun, Narasimha-Rao Venkata Bangaru, Hyun-Woo Jin, John R. Peterson, Robert Lee Antram +1 more | 2008-08-05 |
| 7384444 | Advanced erosion-corrosion resistant boride cermets | Narasimha-Rao Venkata Bangaru, ChangMin Chun, Neeraj S. Thirumalai, Hyun-Woo Jin, John R. Peterson +2 more | 2008-06-10 |
| 7316724 | Multi-scale cermets for high temperature erosion-corrosion service | Narasimha-Rao Venkata Bangaru, ChangMin Chun, Hyun-Woo Jin, John R. Peterson, Robert Lee Antram +1 more | 2008-01-08 |
| 7288132 | Advanced erosion resistant carbide cermets with superior high temperature corrosion resistance | ChangMin Chun, Narasimha-Rao Venkata Bangaru, Hyun-Woo Jin, John R. Peterson, Robert Lee Antram +1 more | 2007-10-30 |
| 7247186 | Advanced erosion resistant carbonitride cermets | ChangMin Chun, Narasimha-Rao Venkata Bangaru, Hyun-Woo Jin, John R. Peterson, Robert Lee Antram +1 more | 2007-07-24 |
| 7175687 | Advanced erosion-corrosion resistant boride cermets | Narasimha-Rao Venkata Bangaru, ChangMin Chun, Neeraj S. Thirumalai, Hyun-Woo Jin, John R. Peterson +2 more | 2007-02-13 |
| 7175686 | Erosion-corrosion resistant nitride cermets | ChangMin Chun, Narasimha-Rao Venkata Bangaru, Hyun-Woo Jin, John R. Peterson, Robert Lee Antram +1 more | 2007-02-13 |
| 7153338 | Advanced erosion resistant oxide cermets | Narasimha-Rao Venkata Bangaru, ChangMin Chun, Hyun-Woo Jin, John R. Peterson, Robert Lee Antram +1 more | 2006-12-26 |
| 7074253 | Advanced erosion resistant carbide cermets with superior high temperature corrosion resistance | ChangMin Chun, Narasimha-Rao Venkata Bangaru, Hyun-Woo Jin, John R. Peterson, Robert Lee Antram +1 more | 2006-07-11 |
| 7063752 | Grain refinement of alloys using magnetic field processing | Shiun Ling, Michael J. Luton, Hans Thomann, Narasimha-Rao Venkata Bangaru | 2006-06-20 |
| 7048810 | Method of manufacturing hot formed high strength steel | Clifford W. Petersen, Narasimha-Rao Venkata Bangaru, Michael J. Luton | 2006-05-23 |
| 6565678 | Weld metals with superior low temperature toughness for joining high strength, low alloy steels | Douglas P. Fairchild, Narasimha-Rao Venkata Bangaru, Mario L. Macia, Danny L. Beeson, Adnan Ozekcin | 2003-05-20 |
| 6264760 | Ultra-high strength, weldable steels with excellent ultra-low temperature toughness | Hiroshi Tamehiro, Hitoshi Asahi, Takuya Hara, Yoshio Terada, Michael J. Luton +2 more | 2001-07-24 |
| 6254698 | Ultra-high strength ausaged steels with excellent cryogenic temperature toughness and method of making thereof | Narasimha-Rao Venkata Bangaru, Glen A. Vaughn, Raghavan Ayer | 2001-07-03 |
| 6251198 | Ultra-high strength ausaged steels with excellent cryogenic temperature toughness | Narasimha-Rao Venkata Bangaru, Glen A. Vaughn | 2001-06-26 |
| 6248191 | Method for producing ultra-high strength, weldable steels with superior toughness | Michael J. Luton, Narasimha-Rao Venkata Bangaru, Clifford W. Petersen, Hiroshi Tamehiro, Hitoshi Asahi +2 more | 2001-06-19 |
| 6245290 | High-tensile-strength steel and method of manufacturing the same | Narasimha-Rao Venkata Bangaru, Michael J. Luton, Clifford W. Petersen, Kazuki Fujiwara, Shuji Okaguchi +2 more | 2001-06-12 |