Crispin David Bolgar

This inventor holds 13 USPTO granted patents and 1 published patent application, plus 1 CIPO patent and 4 EPO patents. Top assignee: Rolls-Royce Corporation. Active years: 2008-2023.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Crispin David Bolgar. Retrieved from https://idiyas.com/inventor/crispin-david-bolgar

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

USPTO Granted Patents = 13 (Patent Applications = 1)

% Patents Active = 69.2

CIPO Patents = 1

EPO Patents = 4 (Patent Applications = 3)

Average Co-Inventor Count = 1.6

ph-index = 4

Forward Citations = 50(Granted Patents)

Company Filing History:

13 out of 6,027

Rolls-Royce Corporation

patents

Years Active: 2008-2023

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13 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 11834958 - Rotor assembly (2023-12-05),

2. 11828198 - Vane joint (2023-11-28),

3. 11753966 - Casing assembly for gas turbine engine (2023-09-12),

4. 10451083 - Compressor (2019-10-22),

5. 10138812 - Gas turbine engine bearing chamber seals (2018-11-27),

6. 9625101 - Pressure controlled chamber (2017-04-18),

7. 9103281 - Gas turbine engine havinga rotatable off-take passage in a compressor section (2015-08-11),

8. 8973371 - Gas turbine engine with turbine cooling arrangement (2015-03-10),

9. 8864406 - Splined couplings (2014-10-21),

10. 8727709 - Casing component (2014-05-20),

11. 8677733 - Ducted fan gas turbine assembly (2014-03-25),

12. 8052373 - Multi-rotational crankshaft arrangement (2011-11-08),

13. 7448851 - Seal arrangement (2008-11-11),

Title: The Innovative Contributions of Crispin David Bolgar

Introduction

Crispin David Bolgar is a notable inventor based in Nottingham, GB, recognized for his significant contributions to the field of gas turbine engine technology. With a total of 13 patents to his name, Bolgar has demonstrated a commitment to innovation and engineering excellence.

Latest Patents

Among his latest patents, Bolgar has developed a rotor assembly designed for gas turbine engines. This rotor assembly features a first rotor stage with a disc portion and a second rotor stage that is axially adjacent and downstream of the first. The design includes a rotor drum cavity defined by the axial extension of the second rim portion, which enhances the efficiency of the engine. Additionally, he has patented a vane for gas turbine engines, which includes a platform with an airfoil and a joint portion that incorporates a circumferentially extending flange and a recessed surface. These innovations reflect Bolgar's expertise in optimizing turbine performance.

Career Highlights

Crispin David Bolgar is currently employed at Rolls-Royce Corporation, where he applies his engineering skills to advance turbine technology. His work has been instrumental in developing solutions that improve the performance and reliability of gas turbine engines.

Collaborations

Throughout his career, Bolgar has collaborated with esteemed colleagues, including Jonathan M King and Guy David Snowsill. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.

Conclusion

Crispin David Bolgar's contributions to gas turbine technology through his patents and collaborations highlight his role as a leading inventor in the field. His work continues to influence advancements in engineering and technology.

Profile summary based on public USPTO records.