For the Inventor, By the Inventor

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Englewood, CO, United States of America

Ch2m Hill, Inc.

USPTO Granted Patents = 45

% Expired Patents = 28.9

Trademarks = 2

Forward Citations = 599

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62 inventors (with patents filed for the assignee):

Glen T Daigger (9 out of 13 patents)

Jan Allen (4 out of 6 patents)

Albert M Wollmann (4 out of 4 patents)

4. John W Lee, Jr (3 out of 3 patents)

5. Bruce R Johnson (3 out of 7 patents)

6. Paul Mueller (3 out of 3 patents)

7. Anthony G Myers (3 out of 3 patents)

8. Edwin J Fleischer (3 out of 3 patents)

9. Arun S Wagh (2 out of 31 patents)

10. Todd Owen Williams (2 out of 2 patents)

11. George V Crawford (2 out of 4 patents)

12. Avinash S Patwardhan (2 out of 2 patents)

13. Sudhir N Murthy (2 out of 3 patents)

14. Thomas A Broderick (2 out of 2 patents)

15. Mitchell H Lindsay (2 out of 2 patents)

Core Competencies:

Wastewater Treatment

Phosphorus Removal

Vapor Intrusion

Bioreactor

Water Quality

Sludge Fermentation

Thermal Hydrolysis

Chemical Treatment

Portable Systems

Environmental Extraction

Modular Biofilter

Composting

45 patents: Sort by Forward Citations

1. 10324007 - Passive device for vapor intrusion sampling (2019-06-18),

2. 9885647 - Semi-dynamic leach test device and methods of making and using (2018-02-06),

3. 8742195 - Aluminum phosphate ceramics for waste storage (2014-06-03),

4. 8721887 - Method and system for treating wastewater (2014-05-13),

5. 8313921 - Reclaimable hybrid bioreactor (2012-11-20),

6. 8119003 - Methods for reducing biosolids odors (2012-02-21),

7. 8105490 - Low phosphorus water treatment systems (2012-01-31),

8. 7968760 - Treatment of particulate biodegradable organic waste by thermal hydrolysis using condensate recycle (2011-06-28),

9. 7927493 - Low phosphorus water treatment methods (2011-04-19),

10. 7754090 - Portable ultraviolet water treatment apparatus (2010-07-13),

11. 7745679 - Method of waste stabilization with dewatered chemically bonded phosphate ceramics (2010-06-29),

12. 7645092 - Treatment of in ground chromium ore processing residue (2010-01-12),

13. 7537699 - Methods for reducing biosolids odors (2009-05-26),

14. 7446673 - Intelligent wireless multicast network (2008-11-04),

15. 7435340 - Wastewater treatment system (2008-10-14),

Company Overview

Ch2m Hill, Inc. is a prominent engineering and consulting firm based in Englewood, Colorado, specializing in environmental and infrastructure solutions. The company focuses on advanced technologies for vapor intrusion sampling, wastewater treatment, and bioreactor technology, contributing to sustainable water management practices. Additionally, Ch2m Hill is involved in innovative approaches such as water quality trading, thermal hydrolysis, and biosolids odor reduction, addressing critical challenges in water quality and environmental protection.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

45 Patents

#12 in Englewood, CO

#151 in Colorado

#7,781 in US

#15,436 in the World

Englewood, CO, United States of America

Ch2m Hill, Inc.

Forward Citations = 599

62 inventors:

Glen T Daigger (9 out of 13 patents)

Jan Allen (4 out of 6 patents)

Albert M Wollmann (4 out of 4 patents)

4. John W Lee, Jr (3 out of 3 patents)

5. Bruce R Johnson (3 out of 7 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Ch2m Hill, Inc.. Retrieved from https://idiyas.com/company/ch2m-hill

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

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

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