Des Plaines, IL, United States of America

Robert L Mehlberg

This inventor holds 53 USPTO granted patents and 1 published patent application and 2 EPO patents, primarily in Fluid Catalytic Cracking (CPC class C10G). Top assignees: Uop Lcc, Upo LLC. Active years: 2005-2025.

USPTO Granted Patents = 53 (Patent Applications = 1)

% Patents Active = 86.8

EPO Patents = 2 (Patent Applications = 3)

Average Co-Inventor Count = 2.3

ph-index = 5

Forward Citations = 139(Granted Patents)

Forward Citations (Not Self Cited) = 123(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Des Plaines, IL (US) (2011 - 2015)
Wheaton, IL (US) (2005 - 2022)
Whetaon, IL (US) (2022)

Company Filing History:

Years Active: 2005-2025

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Areas of Expertise:

Fluid Catalytic Cracking

Catalyst Separation

Oligomerization

Reactor System

Feed Distribution

Hydrocarbon Recycling

Aromatic Conversion

Riser Apparatus

Dehydrogenation Zone

Elevated Feed Distribution

Exotherm Management

Catalyst Mixing

53 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12403440 - Apparatus for distributing feed with a cluster of orifices on a side of the distributor (2025-09-02),

2. 11517869 - Riser extension apparatus and process (2022-12-06),

3. 11285417 - Apparatus and process for capturing product gases from catalyst stripper (2022-03-29),

4. 11261143 - Apparatus and process for separating gases from catalyst (2022-03-01),

5. 11214741 - Fluid catalytic cracking process for cracking multiple feedstocks (2022-01-04),

6. 10722861 - Reactor system for use with an ionic liquid catalyst (2020-07-28),

7. 10626339 - Process and apparatus for recycling cracked hydrocarbons (2020-04-21),

8. 10563135 - Process for producing a diesel fuel by oligomerization (2020-02-18),

9. 10238987 - Alkylation system and a process for cooling a vent stream (2019-03-26),

10. 10071357 - Compact two-stage regenerator and process for using (2018-09-11),

11. 9981261 - Process for using a compact two-stage regenerator (2018-05-29),

12. 9834495 - Exotherm, conversion and selectivity management for oligomerization process (2017-12-05),

13. 9815049 - Selectivity of ionic liquid alkylation (2017-11-14),

14. 9669373 - Apparatus and process for heating catalyst from a reactor (2017-06-06),

15. 9567272 - FCC process with a dehydrogenation zone for max propylene production (2017-02-14),

Title: Investigating the Inventor: Robert L Mehlberg

Introduction: Robert L Mehlberg, a prolific inventor based in Des Plaines, IL, has made significant contributions to the field of fluid catalytic cracking. With an impressive portfolio of 52 patents, Mehlberg's innovative spirit shines through in his latest inventions.

Latest Patents: Mehlberg's recent patents include the "Riser Extension Apparatus and Process," which revolutionizes the fluid catalytic cracking process by enhancing efficiency and product quality. Another notable invention is the "Apparatus and Process for Capturing Product Gases from Catalyst Stripper," designed to optimize gas and catalyst disengagement in FCC operations.

Career Highlights: Mehlberg has left an indelible mark on the industry through his work at UOP LLC (formerly known as Universal Oil Products). His expertise and ingenuity have paved the way for advancements in petrochemical processes, earning him a reputation as a trailblazer in the field.

Collaborations: Throughout his career, Mehlberg has collaborated with esteemed professionals such as Keith Allen Couch and Paolo Palmas. Together, they have synergized their skills and knowledge to drive innovation and push boundaries in the realm of catalytic cracking technologies.

Conclusion: Robert L Mehlberg's relentless pursuit of innovation and passion for problem-solving have established him as a visionary inventor in the realm of fluid catalytic cracking. His patents stand as a testament to his ingenuity and dedication to pushing the boundaries of technological advancement in the petrochemical industry.