% Expired Patents = 25.0

Forward Citations = 174

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3 inventors (with patents filed for the assignee):

Mark D Ankeny (4 out of 10 patents)

James A Kelsey (2 out of 2 patents)

Mark E Burkhard (2 out of 2 patents)

4 patents: Sort by Forward Citations

1. 6749368 - Design, monitoring and control of soil carburetors for degradation of volatile compounds (2004-06-15),

2. 6467994 - Apparatus and method for beneficial use or handling of run-off or collected water (2002-10-22),

3. 5421672 - Means and method for hydraulically isolating unsaturated zones in soil (1995-06-06),

4. 5299140 - Means and method for measurement of porous materials (1994-03-29),

Company Overview

Daniel B. Stephens & Associates, Inc. (DBS&A) is an environmental consulting firm providing innovative solutions for managing water resources, land, and the environment. With over 35 years of experience, we offer a wide range of services including hydrology, water quality, environmental remediation, and regulatory compliance. Our team of experts works closely with clients to develop sustainable strategies and implement effective solutions for their projects.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

4 Patents

#102 in Albuquerque, NM

#163 in New Mexico

#60,641 in US

Albuquerque, NM, United States of America

Daniel B. Stephens & Associates, Inc.

Forward Citations = 174

3 inventors:

Mark D Ankeny (4 out of 10 patents)

James A Kelsey (2 out of 2 patents)

Mark E Burkhard (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Daniel B. Stephens & Associates, Inc.. Retrieved from https://idiyas.com/company/daniel-b-stephens-and-associates

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]