Franck Chastagnol

This inventor holds 22 USPTO granted patents and 1 published patent application, plus 3 CIPO patents and 4 EPO patents, primarily in Personalized Search Systems. Top assignee: Dropbox, Inc.. Active years: 2014-2024.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Franck Chastagnol. Retrieved from https://idiyas.com/inventor/franck-chastagnol

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

Calculating rank

USPTO Granted Patents = 22 (Patent Applications = 1)

% Patents Active = 95.5

CIPO Patents = 3 (Patent Applications = 1)

EPO Patents = 4 (Patent Applications = 1)

Average Co-Inventor Count = 3.4

ph-index = 6

Forward Citations = 187(Granted Patents)

Location History:

San Carlos, CA (US) (2014 - 2015)
Woodside, CA (US) (2015 - 2024)

Company Filing History:

22 out of 1,216

Dropbox, Inc.

patents

Years Active: 2014-2024

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Areas of Expertise:

Hybrid Event Index

Content Searching

User Computing Devices

Search Query Autocomplete

Instant Indexing

Campaign Offers

Digitized Receipt Data

Multi-User Search

22 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 11914585 - Servicing queries of a hybrid event index (2024-02-27),

2. 11468053 - Servicing queries of a hybrid event index (2022-10-11),

3. 11120089 - Personal content item searching system and method (2021-09-14),

4. 10977324 - Personal content item searching system and method (2021-04-13),

5. 10887373 - Proactively sending hosted content items to user computing devices (2021-01-05),

6. 10853348 - Multi-user search system with methodology for personalized search query autocomplete (2020-12-01),

7. 10817499 - Multi-user search system with methodology for personal searching (2020-10-27),

8. 10579609 - Multi-user search system with methodology for bypassing instant indexing (2020-03-03),

9. 10394910 - Personal content item searching system and method (2019-08-27),

10. 10102238 - Multi-user search system using tokens (2018-10-16),

11. 9984110 - Multi-user search system with methodology for personalized search query autocomplete (2018-05-29),

12. 9977810 - Multi-user search system with methodology for personal searching (2018-05-22),

13. 9959357 - Personal content item searching system and method (2018-05-01),

14. 9848033 - System and method for proactively sending hosted content items to user computing devices (2017-12-19),

15. 9792315 - Multi-user search system with methodology for bypassing instant indexing (2017-10-17),

Title: Innovator Spotlight: Franck Chastagnol

Introduction: Franck Chastagnol, based in Woodside, California, is an accomplished inventor with a remarkable portfolio of 22 patents. He is currently associated with Dropbox, Inc., where he contributes to the development of innovative technologies that enhance user experiences.

Latest Patents: Among his latest inventions, Franck has developed a patent titled "Servicing Queries of a Hybrid Event Index." This innovative system encompasses methods for querying a hybrid event index of a user. The technology includes receiving search requests related to various namespaces and determining index servers that store portions of the hybrid event index. Through this process, the system can effectively search the index, determine key attributes from search requests, and generate a filtered payload for user queries. This patent highlights Franck's commitment to integrating advanced data processing techniques into everyday applications.

Career Highlights: Franck's career at Dropbox, Inc. is marked by notable advancements in technology and user interface design. His contributions have significantly influenced how information is accessed and processed in the digital space. With a focus on hybrid systems, Franck has played a pivotal role in bridging gaps between different types of data environments.

Collaborations: Throughout his career, Franck has collaborated with talented professionals, including Samir Goel and Abhishek Agrawal. Together, they have worked on pioneering projects that resonate with users and drive technological progress within the organization.

Conclusion: Franck Chastagnol exemplifies the innovative spirit within the tech industry. His portfolio of patents and collaborative efforts at Dropbox, Inc. underscores his vital role in shaping modern technological solutions. As he continues to push the boundaries of invention, Franck's work remains a testament to the power of creativity and ingenuity in the realm of technology.

Profile summary based on public USPTO records.