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For the Inventor, By the Inventor

Houston, TX, United States of America

Landmark Graphics Corporation


USPTO Granted Patents = 608



Trademarks = 45

Forward Citations = 2,634

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561 inventors (with patents filed for the assignee):

goldMedal Robello Samuel (87 out of 120 patents)

silverMedal Jeffrey Marc Yarus (39 out of 43 patents)

bronzeMedal Keshava Prasad Rangarajan (36 out of 39 patents)

4.  Srinath Madasu (32 out of 54 patents)

5.  Graham Christopher Fleming (21 out of 24 patents)

6.  Adolfo Gonzales (20 out of 22 patents)

7.  Travis St George Ramsay (20 out of 20 patents)

8.  Genbao Shi (20 out of 20 patents)

9.  Alvin Stanley Cullick (20 out of 21 patents)

10.  Marko Maucec (18 out of 26 patents)

11.  Gustavo Carvajal (18 out of 18 patents)

12.  Andrey V Filippov (18 out of 42 patents)

13.  Terry Wayne Wong (17 out of 19 patents)

14.  Amit Kumar (16 out of 23 patents)

15.  Zhengchun Liu (15 out of 18 patents)


Core Competencies:
Drill String Packoff
Wellbore Trajectory Control
Machine Learning Optimization
Seismic Data Analysis
Reservoir Management
Geological Feature Detection
Autonomous Monitoring
Hydrocarbon Exploration
Digital Twins
Robotics in Drilling
Predictive Modeling
Fluid Injection Optimization

608 patents:

1. 12509980 - Integrated surveillance and control of oilfield activity (2025-12-30),
2. 12486759 - Supervised machine learning-based wellbore correlation (2025-12-02),
3. 12486755 - Predicting a drill string packoff event (2025-12-02),
4. 12467352 - Calibration of drillstring weight for friction factor estimation (2025-11-11),
5. 12467350 - Wellbore trajectory control using reservoir property projection and optimization (2025-11-11),
6. 12461263 - Graph based multi-survey horizon optimization (2025-11-04),
7. 12448869 - COoperation temperature and pressure analysis and well design with COmodeling with equation of state method (2025-10-21),
8. 12442946 - Seismic navigation data quality analysis (2025-10-14),
9. 12423610 - Estimation of global thermal conditions via cosimulation of machine learning outputs and observed data (2025-09-23),
10. 12421839 - Multi-objective optimization on modeling and optimizing scaling and corrosion in a wellbore (2025-09-23),
11. 12416223 - Model parameter reductions and model parameter selection to optimize execution time of reservoir management workflows (2025-09-16),
12. 12410689 - Flow simulator for generating reservoir management workflows and forecasts based on analysis of high-dimensional parameter data space (2025-09-09),
13. 12404753 - Adjusting fluid injection into a wellbore based on relative permeability of a formation (2025-09-02),
14. 12378871 - Pack off indicator for a wellbore operation (2025-08-05),
15. 12360274 - AI/ML, distributed computing, and blockchained based reservoir management platform (2025-07-15),
Landmark Graphics Corporation is a leading provider of integrated exploration, drilling, and production software solutions for the oil and gas industry. With over 30 years of industry expertise, Landmark offers advanced technology and consulting services to help clients optimize their operations and improve decision-making. Their comprehensive software portfolio includes solutions for drilling, geophysics, production, reservoir management, and data management. Visit their website for more information and explore how Landmark's innovative solutions can drive efficiency and productivity in the petroleum industry.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 30 2025

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608 Patents

#20 in Houston, TX

#48 in Texas

#787 in US

#1,572 in the World

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Houston, TX, United States of America

Landmark Graphics Corporation

Forward Citations = 2,634

561 inventors:

goldMedal Robello Samuel (87 out of 120 patents)

silverMedal Jeffrey Marc Yarus (39 out of 43 patents)

bronzeMedal Keshava Prasad Rangarajan (36 out of 39 patents)

4.  Srinath Madasu (32 out of 54 patents)

5.  Graham Christopher Fleming (21 out of 24 patents)

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