For the Inventor, By the Inventor

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Yellow Springs, OH, United States of America

Ysi, Inc.

USPTO Granted Patents = 36

EPO Patents = 13

Trademarks = 25

Forward Citations = 1,434

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43 inventors (with patents filed for the assignee):

Donald R Moles (9 out of 9 patents)

Christopher John Palassis (6 out of 6 patents)

Kevin Riley Flanagan (6 out of 6 patents)

4. Ramon Cabrera (5 out of 5 patents)

5. Ronald Alan Metzger (3 out of 3 patents)

6. Zhivko Grozev (3 out of 3 patents)

7. Alexander Kovachev (3 out of 3 patents)

8. Daryl B Slocum (3 out of 11 patents)

9. John Sloat (3 out of 3 patents)

10. Martin Milanov (2 out of 2 patents)

11. Daniel J Wagenaar (2 out of 2 patents)

12. Michael T James (2 out of 4 patents)

13. Matthew J Hull (2 out of 2 patents)

14. Miguel Angel Rojo (2 out of 2 patents)

15. Jay M Johnson (2 out of 9 patents)

Core Competencies:

Fluorometer

Turbidity Sensor

Water Quality Monitoring

Acoustic Doppler

Microfluidic Device

Electroosmotic Flow

Probe Head

Nitrate Sensor

Conductivity Measurement

Sensor Compensation

Discharge Measurement

Antifouling Accessory

36 patents: Sort by Forward Citations

1. 12061149 - Swept frequency fluorometer (2024-08-13),

2. 11860096 - Extended solid angle turbidity sensor (2024-01-02),

3. 11656180 - Multi excitation-multi emission fluorometer for multiparameter water quality monitoring (2023-05-23),

4. 11604143 - Spatial gradient-based fluorometer (2023-03-14),

5. 11519858 - Induced crosstalk circuit for improved sensor linearity (2022-12-06),

6. 11073475 - Optical nitrate sensor for multiparameter water quality measurement (2021-07-27),

7. 10982984 - Technique to measure the distance between stations using DGPS/RTK GPS in the velocity area method (stationary) with an acoustic doppler current profiler (2021-04-20),

8. 10955341 - Optical nitrate sensor compensation algorithm for multiparameter water quality measurement (2021-03-23),

9. 10908000 - Antifouling accessory for field deployed sensors and instruments (2021-02-02),

10. 10823673 - Dual function fluorometer-absorbance sensor (2020-11-03),

11. 10436585 - Method for compensating for Venturi effects on pressure sensors in moving water (2019-10-08),

12. 9702736 - Housing and method of making same (2017-07-11),

13. 9200929 - Replaceable probe head (2015-12-01),

14. 9170132 - Replaceable probe head having an operational amplifier (2015-10-27),

15. 8780672 - Multi-frequency, multi-beam acoustic doppler system with concurrent processing (2014-07-15),

Company Overview

Ysi, Inc., based in Yellow Springs, Ohio, specializes in the development and manufacturing of advanced environmental monitoring and measurement instruments. The company focuses on providing innovative solutions for water quality analysis, offering a range of products that cater to various sectors, including environmental research, industrial applications, and water treatment. Ysi's commitment to precision and reliability positions it as a key player in the field of environmental technology, supporting efforts to ensure sustainable water resources.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

36 Patents

#2 in Yellow Springs, OH

#408 in Ohio

#9,502 in US

#18,716 in the World

Yellow Springs, OH, United States of America

Ysi, Inc.

Forward Citations = 1,434

43 inventors:

Donald R Moles (9 out of 9 patents)

Christopher John Palassis (6 out of 6 patents)

Kevin Riley Flanagan (6 out of 6 patents)

4. Ramon Cabrera (5 out of 5 patents)

5. Ronald Alan Metzger (3 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Ysi, Inc.. Retrieved from https://idiyas.com/company/ysi

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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