Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE50536 | Methods of performing fracturing operations using an on-site electric power supply | Leonard R. Case, Ed B. Hagan, Calvin L. Stegemoeller | 2025-08-19 |
| RE50233 | Methods of performing fracturing operations using field gas | Leonard R. Case, Ed B. Hagan, Calvin L. Stegemoeller | 2024-12-10 |
| RE50166 | Methods of providing or using a storage unit for a fracturing operation | Leonard R. Case, Ed B. Hagan, Calvin L. Stegemoeller | 2024-10-08 |
| RE50109 | Electric or natural gas fired small footprint fracturing fluid blending and pumping equipment | Leonard R. Case, Ed B. Hagan, Calvin L. Stegemoeller | 2024-09-03 |
| RE49457 | Methods of providing or using a silo for a fracturing operation | Leonard R. Case, Ed B. Hagan, Calvin L. Stegemoeller | 2023-03-14 |
| RE49456 | Methods of performing oilfield operations using electricity | Leonard R. Case, Ed B. Hagan, Calvin L. Stegemoeller | 2023-03-14 |
| RE49448 | Methods of performing oilfield operations using electricity | Leonard R. Case, Ed B. Hagan, Calvin L. Stegemoeller | 2023-03-07 |
| RE49348 | Methods of powering blenders and pumps in fracturing operations using electricity | Leonard R. Case, Ed B. Hagan, Calvin L. Stegemoeller | 2022-12-27 |
| RE49295 | Methods of providing or using a support for a storage unit containing a solid component for a fracturing operation | Leonard R. Case, Ed B. Hagan, Calvin L. Stegemoeller | 2022-11-15 |
| RE49155 | Electric or natural gas fired small footprint fracturing fluid blending and pumping equipment | Leonard R. Case, Ed B. Hagan, Calvin L. Stegemoeller | 2022-08-02 |
| RE49156 | Methods of providing electricity used in a fracturing operation | Leonard R. Case, Ed B. Hagan, Calvin L. Stegemoeller | 2022-08-02 |
| RE49140 | Methods of performing well treatment operations using field gas | Leonard R. Case, Ed B. Hagan, Calvin L. Stegemoeller | 2022-07-19 |
| RE49083 | Methods of generating and using electricity at a well treatment | Leonard R. Case, Ed B. Hagan, Calvin L. Stegemoeller | 2022-05-24 |
| RE47695 | Electric or natural gas fired small footprint fracturing fluid blending and pumping equipment | Leonard R. Case, Ed B. Hagan, Calvin L. Stegemoeller | 2019-11-05 |
| RE46725 | Electric or natural gas fired small footprint fracturing fluid blending and pumping equipment | Leonard R. Case, Ed B. Hagan, Calvin L. Stegemoeller | 2018-02-20 |
| 8834012 | Electric or natural gas fired small footprint fracturing fluid blending and pumping equipment | Leonard R. Case, Ed B. Hagan, Calvin L. Stegemoeller | 2014-09-16 |