Hannu Harjunmaa

This inventor holds 22 USPTO granted patents and 5 published patent applications, plus 1 CIPO patent and 1 EPO patent, primarily in Noninvasive Measurement. Top assignees: Labsystems Oy, Vivascan Corporation, Worcester Polytechnic Institute. Active years: 1985-2019.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hannu Harjunmaa. Retrieved from https://idiyas.com/inventor/hannu-harjunmaa

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

Calculating rank

USPTO Granted Patents = 22 (Patent Applications = 5)

% Patents Active = 90.9

CIPO Patents = 1

EPO Patents = 1 (Patent Applications = 2)

Average Co-Inventor Count = 2.0

ph-index = 13

Forward Citations = 1,594(Granted Patents)

Location History:

Espoo, FI (1985 - 1991)
Vessy, CH (1991 - 1992)
Holden, MA (US) (1993 - 2019)

Company Filing History:

Worcester Polytechnic Institute

Biosensors Technology, Inc.

patent

6. 1 out of 1

Grove Instruments, Inc.

patent

7. 3 out of 834,659

Other

patents

Years Active: 1985-2019

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Areas of Expertise:

Nephelometer

Refractometer

Optical Bridge

Blood Constituent

Differential Spectral Analysis

Immunological Assay

Fluorescence Measurement

Liquid Dispensing

Magnetic Particles

Concentration Measurement

Turbidity

Luminescence

22 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 10234386 - Nephelometer (2019-03-19),

2. 10219755 - Noninvasive measurement of analyte concentration using methods and systems of post-balancing (2019-03-05),

3. 10139340 - Noninvasive refractometer (2018-11-27),

4. 8175666 - Three diode optical bridge system (2012-05-08),

5. 7003337 - Non-invasive substance concentration measurement using and optical bridge (2006-02-21),

6. 5895838 - Method for correcting a liquid dispensing error, and a liquid dispensing (1999-04-20),

7. 5372135 - Blood constituent determination based on differential spectral analysis (1994-12-13),

8. 5183042 - Electromagnetic method and apparatus to measure constituents of human or (1993-02-02),

9. 5178142 - Electromagnetic method and apparatus to measure constituents of human or (1993-01-12),

10. 5137023 - Method and apparatus for monitoring blood analytes noninvasively by (1992-08-11),

11. 5112124 - Method and apparatus for measuring the concentration of absorbing (1992-05-12),

12. 5099123 - Method for determining by absorption of radiations the concentration of (1992-03-24),

13. 5073346 - Combined incubator and cuvette holding apparatus (1991-12-17),

14. 5063024 - Method and apparatus for immunological determinations (1991-11-05),

15. 4777145 - Immunological assay method using magnetic particles (1988-10-11),

Title: **Hannu Harjunmaa: Innovator in Measurement Technologies**

Introduction

Hannu Harjunmaa is an accomplished inventor based in Holden, Massachusetts, known for his significant contributions to measurement technologies. With a remarkable portfolio of 22 patents, Harjunmaa has made strides in the fields of turbidity measurement and noninvasive analyte concentration estimation.

Latest Patents

Among his latest innovations, the nephelometer stands out as a pivotal invention. This device determines the turbidity of a fluid body by directing a light beam at an angle through the sample. Two light detectors then measure the intensity of light scatter at distinct points in the beam. The divided and scaled measurements are logarithmically amplified, providing a clear display of the turbidity.

Another remarkable patent is the noninvasive method for estimating the concentration of target analytes in samples. This method involves generating various radiation types and directing them at a sample containing the target analyte. By modulating the sample thickness, the method achieves time-wise or spatial variations in analyte concentration. Data is processed to estimate the target analyte concentration based on a balanced combination of measured data.

Career Highlights

Hannu Harjunmaa's career includes vital roles at notable companies such as Labsystems Oy and Vivascan Corporation. His work has greatly impacted the development of technologies that enhance measurement precision in various applications.

Collaborations

Throughout his career, Harjunmaa has collaborated with esteemed colleagues, including Yitzhak Mendelson and Yi Wang. These partnerships have facilitated significant advancements in measurement methodologies and technologies.

Conclusion

Hannu Harjunmaa's innovative spirit and expert knowledge in measurement technologies have led to valuable patents that continue to influence various scientific fields. His contributions reflect a commitment to advancing the science of measurement, positioning him as a notable figure in the industry.

Profile summary based on public USPTO records.