Aberdeen, United Kingdom

Eric R Schwelm

This inventor holds 2 USPTO granted patents. Top assignees: Abb Vetco Gray Incorporated, Vetco Gray Inc.. Active years: 1991-1993.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Eric R Schwelm. Retrieved from https://idiyas.com/inventor/eric-r-schwelm

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 3.7

ph-index = 2

Forward Citations = 46(Granted Patents)


Location History:

  • Aberdeen, GB (1991)
  • Bridge of Don, GB (1993)

Company Filing History:


Years Active: 1991-1993

Loading Chart...
2 patents (USPTO):Explore Patents

Title: Eric R Schwelm: Innovator in Wellhead Technology

Introduction

Eric R Schwelm is a notable inventor based in Aberdeen, GB. He has made significant contributions to the field of wellhead technology, holding a total of 2 patents. His innovative designs focus on enhancing the efficiency and safety of casing operations in the oil and gas industry.

Latest Patents

Schwelm's latest patents include a "Casing Tension Retainer" and a "Casing Tensioning Mechanism for a Casing Hanger." The Casing Tension Retainer is designed to support a string of casing in tension using a load ring that mounts to the exterior of a casing hanger. This load ring is split, resilient, and outwardly biased, allowing it to retain its position during the running of the casing. Once the casing is in place, the running tool releases the load ring, enabling it to spring outward and support the load effectively. The load ring features wickers on its exterior that engage with corresponding wickers in the bore.

The Casing Tensioning Mechanism for a Casing Hanger includes a series of dogs mounted around the exterior of the casing hanger. Each dog is equipped with wickers that engage with wickers formed in the bore of a wellhead housing. These dogs are housed within a recess that has upper and lower parallel conical shoulders. A sleeve retains the dogs in a retracted position until tension is applied, at which point the sleeve releases the dogs through rotational movement of the running tool.

Career Highlights

Throughout his career, Schwelm has worked with prominent companies in the industry, including Abb Vetco Gray Incorporated and Vetco Gray Inc. His experience in these organizations has allowed him to develop and refine his innovative ideas, contributing to advancements in wellhead technology.

Collaborations

Some of Schwelm's notable coworkers include Stephen A Cromar and Garry R Stephen. Their collaboration has likely played a role in the development of his patented technologies.

Conclusion

Eric R Schwelm is a distinguished inventor whose work in wellhead technology has led to significant advancements in the field. His patents reflect a commitment to improving the efficiency and safety of casing operations, making him a valuable contributor to the industry.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
Loading…