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For the Inventor, By the Inventor

Houston, TX, United States of America

Landmark Graphics Corporation


USPTO Granted Patents = 626

% Expired Patents = 19.2



Trademarks = 34

Forward Citations = 2,733

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572 inventors (with patents filed for the assignee):

goldMedal Robello Samuel (94 out of 127 patents)

silverMedal Keshava Prasad Rangarajan (39 out of 42 patents)

bronzeMedal Jeffrey Marc Yarus (39 out of 43 patents)

4.  Srinath Madasu (35 out of 57 patents)

5.  Adolfo Gonzales (21 out of 23 patents)

6.  Travis St George Ramsay (21 out of 21 patents)

7.  Genbao Shi (21 out of 21 patents)

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

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

10.  Marko Maucec (18 out of 27 patents)

11.  Gustavo Carvajal (18 out of 18 patents)

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

13.  Zhengchun Liu (17 out of 20 patents)

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

15.  Yongfeng Kang (16 out of 17 patents)


Core Competencies:
AI/ML
Reservoir Management
Seismic Data
Wellbore Optimization
Machine Learning
Hydrocarbon Exploration
Geological Modeling
Drilling Automation
Predictive Modeling
Fault Interpretation
Data Analysis
Digital Twins

626 patents:

1. 12748229 - Learning hydrocarbon distribution from seismic image (2026-09-29),
2. 12735953 - Calculating pull for a stuck drill string (2026-09-15),
3. 12724164 - AI/ML, distributed computing, and blockchained based reservoir management platform (2026-09-01),
4. 12723502 - Brittle-burst strength for well system tubular integrity (2026-09-01),
5. 12704652 - Faulted seismic horizon mapping (2026-08-11),
6. 12704058 - Calibration of drillstring weight with drag for friction factor estimation (2026-08-11),
7. 12693448 - Gridless volumetric computation (2026-07-28),
8. 12688690 - Diffusion modeling based subsurface formation evaluation (2026-07-21),
9. 12682283 - Historical geological data for machine-learning (2026-07-14),
10. 12639112 - Methods and systems to determine and optimize reservoir simulator performance in a cloud computing environment (2026-05-26),
11. 12613355 - AI/ML and blockchained based automated reservoir management platform (2026-04-28),
12. 12601224 - Fault interpretation and feature learning on full azimuth stacks (2026-04-14),
13. 12595728 - Pack off indicator for a wellbore operation (2026-04-07),
14. 12595723 - Multi-agent, multi-objective wellbore gas-lift optimization (2026-04-07),
15. 12590495 - Retrofitting existing rig hardware and performing bit forensic for dull bit grading through software (2026-03-31),
Landmark Graphics Corporation, based in Houston, TX, specializes in advanced reservoir management solutions. The company focuses on integrating artificial intelligence and machine learning into hydrocarbon exploration and production processes. Its expertise encompasses seismic data analysis, geological modeling, and wellbore optimization, enabling energy companies to enhance drilling automation and improve resource extraction efficiency. Landmark's innovative technologies support the evolving needs of the oil and gas industry, driving sustainable practices and operational excellence.
Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

Landmark Graphics Corporation
626 Patents

#18 in Houston, TX

#48 in Texas

#796 in US

#1,577 in the World

Houston, TX (US)
Houston, TX, United States of America

Landmark Graphics Corporation

Forward Citations = 2,733

572 inventors:

goldMedal Robello Samuel (94 out of 127 patents)

silverMedal Keshava Prasad Rangarajan (39 out of 42 patents)

bronzeMedal Jeffrey Marc Yarus (39 out of 43 patents)

4.  Srinath Madasu (35 out of 57 patents)

5.  Adolfo Gonzales (21 out of 23 patents)

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