[7] John Crane is the largest subsidiary of Smiths Group plc,[8] a global technology business listed on the London Stock Exchange.

He discovered that wrapping his flex packing in metallic foil increased its longevity and kept the cylinders’ surface smooth and uniform.

Prior to World War II, Crane Packing sold its England-based operations to Tube Investments, known today as TI Group PLC.

From the years 1941 to 1949, Crane Packing applied for and received 24 patents, the majority of which were for mechanical seals [14] designed to handle high-pressure and corrosive applications.

Another advancement of sealing and packing technology during this period was the commercial availability of polytetrafluoroethylene (PTFE), marketed by its creator DuPont as Teflon.

This branch of the company specializes in artificial lift equipment and services for upstream oil and gas production.

[16] John Crane Group filed lawsuits against Simon Greenstone Panatier and Shein Law Center in 2016 in federal court in Illinois.

The suit alleged that Shein withheld evidence in violation of the RICO Act in cases brought against John Crane by sufferers of mesothelioma.