Location History:
- Kenilworth, GB (1997 - 2017)
- Warwickshire, GB (2011 - 2017)
Company Filing History:
3 out of 21 
2 out of 7 
1 out of 373 
Years Active: 1997-2017
Title: David Callum Johnson: Innovator in Brake Technology
Introduction
David Callum Johnson is a notable inventor based in Kenilworth, GB. He has made significant contributions to the field of brake technology, holding a total of 6 patents. His innovative designs focus on improving the performance and durability of braking systems.
Latest Patents
Among his latest patents is a carbon article featuring an improved primer coating and an enhanced anti-oxidant coating. This carbon article is specifically shaped as a brake disc, which is coated with an anti-oxidant layer achieved by applying a primer coat that includes orthophosphoric acid, aluminum hydroxide, demineralized water, and a wetting additive. After curing the primer coat, a barrier coat is applied, which consists of similar components along with colloidal silica, silicon hexaboride, boron, and a wetting additive. Another significant patent involves a brake apparatus and a method for operating it. This apparatus includes multiple brake elements with a combined thickness, where at least one element has a wear portion designed for tribological interaction with an adjacent element. The method allows for the operation of an actuator at a specific extension length to ensure effective tribological engagement as the elements wear.
Career Highlights
David has worked with prominent companies in the aerospace sector, including Meggitt Aerospace Limited and Dunlop Aerospace Limited. His experience in these organizations has contributed to his expertise in developing advanced braking systems.
Collaborations
Throughout his career, David has collaborated with notable professionals such as Thomas G. Fennell and Ronald Fisher. These partnerships have further enriched his work and innovations in the field.
Conclusion
David Callum Johnson stands out as an influential inventor in brake technology, with a focus on enhancing the performance and safety of braking systems. His contributions through patents and collaborations reflect his commitment to innovation in this critical area.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.