Hans Kristian Kotlar

This inventor holds 9 USPTO granted patents and 3 published patent applications, plus 10 CIPO patents and 3 EPO patents. Top assignees: Statoil Asa, Statoil Petroleum as, Statoilhydro Asa. Active years: 2007-2014.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hans Kristian Kotlar. Retrieved from https://idiyas.com/inventor/hans-kristian-kotlar

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

USPTO Granted Patents = 9 (Patent Applications = 3)

% Patents Active = 66.7

CIPO Patents = 10

EPO Patents = 3 (Patent Applications = 2)

Average Co-Inventor Count = 2.2

ph-index = 4

Forward Citations = 53(Granted Patents)

Company Filing History:

Years Active: 2007-2014

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9 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 8881815 - Well treatment (2014-11-11),

2. 8863855 - Method of enhancing oil recovery (2014-10-21),

3. 8596358 - Well treatment (2013-12-03),

4. 7964539 - Well treatment (2011-06-21),

5. 7807609 - Well treatment process (2010-10-05),

6. 7473672 - Well treatment process (2009-01-06),

7. 7341979 - Well treatment method (2008-03-11),

8. 7270184 - Method of well treatment (2007-09-18),

9. 7244693 - Well treatment (2007-07-17),

Title: **Innovations of Hans Kristian Kotlar: Pioneering Methods in Oil Recovery**

Introduction

Hans Kristian Kotlar, an esteemed inventor based in Stavanger, Norway, has made significant contributions to the field of petroleum engineering with a total of nine patents to his name. His innovative approaches to well treatment and oil recovery highlight the intersection of technology and environmental awareness in resource extraction.

Latest Patents

One of Kotlar's latest patents involves a groundbreaking method for well treatment aimed at subterranean formations containing sand particles. This method utilizes a positively charged polymer that enhances the residual matrix strength of sand, effectively reducing or preventing migration while minimizing any decrease in the formation's permeability. Suitable polymer materials include polyaminoacids and poly(diallyl ammonium salts), among others. Additionally, Kotlar has developed methods for enhancing oil recovery from subterranean hydrocarbon reservoirs by injecting microorganisms capable of digesting oil into the formation, which potentially revolutionizes traditional recovery techniques.

Career Highlights

Kotlar's professional journey includes significant roles at renowned companies, most notably Statoil ASA and StatoilHydro ASA. His experience in these organizations has allowed him to refine his inventions and process innovations, contributing to advancements in the oil and gas industry.

Collaborations

Throughout his career, Hans Kristian Kotlar has collaborated with notable individuals such as Olav Martin Selle and Oddvar Arnfinn Aune. These partnerships have fostered an environment of shared knowledge and expertise, bolstering the development of various patents and innovative methods in the oil sector.

Conclusion

With nine patents and a focus on innovative solutions for the oil industry, Hans Kristian Kotlar's work continues to inspire and influence future technologies in petroleum engineering. His methods not only aim to enhance recovery efficiency but also address environmental considerations, marking him as a prominent figure in the pursuit of sustainable resource management.

Profile summary based on public USPTO records.