Company Filing History:
2 out of 20 
1 out of 63 
1 out of 832,812 Years Active: 1989-2004
Title: **Inventor Edwin R. Knerr: Pioneering Innovations in Subsea Technology**
Introduction
Edwin R. Knerr, an innovative inventor based in Houston, TX, has made significant contributions to the subsea oil and gas industry. With a total of four patents to his name, Knerr's work focuses on developing advanced apparatuses that enhance operational efficiency and safety in subsea wells. His expertise reflects a deep understanding of the technical challenges faced in this demanding field.
Latest Patents
Among his notable inventions, Knerr has developed two latest patents that showcase his ingenuity:
1. **Tubing Hanger with Ball Valve**: This apparatus is designed for use in subsea wells and features a tubing hanger body with an annulus that includes a ball valve. The ball valve is capable of opening and closing the annulus, comprising a ball valve body within a valve chamber that is integral to the tubing hanger body. This design allows the spherical ball to be hydraulically moved, providing an effective means of controlling flow through the passage.
2. **Crossover Tree System**: Knerr's crossover tree system is an innovative setup for subterranean oil and gas wells. It incorporates a single-bore production tubing hanger that is concentric with a wellhead, including multiple ports and channels that facilitate access to the production tubing annulus. This design enhances the capability for chemical injection and allows for independent retrieval and installation of equipment through extendable and retractable stab assemblies.
Career Highlights
Throughout his career, Edwin R. Knerr has contributed his expertise to various leading companies in the oil and gas sector, including Kvaerner Oilfield Products, Inc. His experience in these roles has been instrumental in developing robust solutions that address industry challenges.
Collaborations
Knerr has collaborated with notable professionals in his field, including Dewey Craig Compton and David C. Baskett. Their combined expertise has fostered innovative ideas and advancements within the subsea technology sector.
Conclusion
Edwin R. Knerr's contributions to the subsea oil and gas industry demonstrate his commitment to innovation and excellence. With a strong portfolio of patents, he continues to influence the development of new technologies that enhance energy extraction processes. His work exemplifies the vital role inventors play in advancing engineering solutions for complex challenges.