Kari Peltonen

This inventor holds 15 USPTO granted patents and 2 published patent applications, plus 2 CIPO patents and 7 EPO patents, primarily in Pulp Processing Technology. Top assignees: Andritz Oy, A. Ahlstrom Corporation, Ahlstrom Machinery, Inc.. Active years: 1993-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kari Peltonen. Retrieved from https://idiyas.com/inventor/kari-peltonen

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

Calculating rank

USPTO Granted Patents = 15 (Patent Applications = 2)

% Patents Active = 93.3

CIPO Patents = 2 (Patent Applications = 3)

EPO Patents = 7 (Patent Applications = 8)

Average Co-Inventor Count = 2.9

ph-index = 4

Forward Citations = 77(Granted Patents)

Location History:

Karhula, both of, FI (2002)
Karhula, FI (1993 - 2011)
Kotka, FI (1996 - 2022)

Company Filing History:

A. Ahlstrom Corporation

patents

1 out of 53

Ahlstrom Machinery, Inc.

Years Active: 1993-2025

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Areas of Expertise:

Microcrystalline Cellulose

Degassing

Separation Device

Hydraulic Digesters

Pulp Flow

Thermal Conductivity

Flotation Separation

Chemical Mixing

Gas Separation

Pumping Methods

15 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12297297 - Process for producing microcrystalline cellulose (2025-05-13),

2. 12173451 - Arrangement and method for degassing a pump (2024-12-24),

3. 11325160 - Separation device (2022-05-10),

4. 10240287 - Heating of hydraulic digesters (2019-03-26),

5. 8721840 - Apparatus for mixing a substance into a medium (2014-05-13),

6. 8048270 - Apparatus for distributing a pulp flow (2011-11-01),

7. 6551054 - Method and apparatus for pumping a material and a rotor for use in connection therewith (2003-04-22),

8. 6491787 - Method for heating pulps (2002-12-10),

9. 6354514 - Method and apparatus for treating material having poor thermal conductivity (2002-03-12),

10. 6071331 - Method and apparatus for separating gas from a gaseous material (2000-06-06),

11. 5791778 - Method and apparatus for mixing gaseous chemical to fiber suspension (1998-08-11),

12. 5536368 - Method and apparatus for mixing a first medium to a second medium and a (1996-07-16),

13. 5462585 - Method and apparatus for separating gas from a gaseous material (1995-10-31),

14. 5258100 - Minimizing gas separation in a mixer outlet (1993-11-02),

15. 5240621 - Method and apparatus for improving flotation separation (1993-08-31),

Title: Biography of Inventor Kari Peltonen

Introduction

Kari Peltonen is a notable inventor based in Kotka, Finland. She has made significant contributions to the field of cellulose processing, holding a total of 15 patents. Her innovative work focuses on improving the production processes of microcrystalline cellulose.

Latest Patents

One of her latest patents is a process for producing microcrystalline cellulose from fibrous cellulosic material through acid hydrolysis at an MCC plant. This process involves thickening a suspension of cellulosic pulp to form filtrate, adjusting the consistency to 5-40% by adding dilution liquid, and lowering the pH to 4 or less with acid. The pulp suspension undergoes acid hydrolysis at temperatures of at least 120° C. in a reactor, resulting in a mixture of microcrystalline cellulose and hydrolysate. The mixture is then discharged to a lower pressure and temperature to flash the mixture and generate flash steam. Microcrystalline cellulose is separated from the hydrolysate, and the separated cellulose is washed and thickened for further processing. Another significant patent involves an arrangement and method for controlling gas flow separated from a suspension of medium consistency pulp, utilizing a degassing centrifugal pump and a pressurized degassing vessel.

Career Highlights

Kari Peltonen has worked with prominent companies in the industry, including Andritz Oy and Ahlstrom Corporation.

Profile summary based on public USPTO records.