For the Inventor, By the Inventor

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Omaha, NE, United States of America

Cetac Technologies, Inc.

USPTO Granted Patents = 16

Forward Citations = 342

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9 inventors (with patents filed for the assignee):

Jianzhong Zhu (7 out of 10 patents)

Daniel R Wiederin (5 out of 158 patents)

Arthur P D'Silva (4 out of 10 patents)

4. John E Sutton (2 out of 2 patents)

5. Douglas T Gjerde (1 out of 104 patents)

6. Sidney L Geil (1 out of 1 patent)

7. Shi-Kit Chan (1 out of 1 patent)

8. David R Hilligoss (1 out of 1 patent)

9. Jeffrey Scott Johnson (1 out of 1 patent)

16 patents: Sort by Forward Citations

1. D675748 - Testing rack (2013-02-05),

2. 5597467 - System for interfacing capillary zone electrophoresis and inductively (1997-01-28),

3. 5454860 - System for generating and providing a gaseous phase sample at relatively (1995-10-03),

4. 5454274 - Sequential combination low temperature condenser and enclosed filter (1995-10-03),

5. 5432096 - Simultaneous multiple, single wavelength electromagnetic wave energy (1995-07-11),

6. 5404219 - System for enhancing detection of sample components in plasma based (1995-04-04),

7. 5400665 - Sample introduction system for inductively coupled plasma and other (1995-03-28),

8. 5393673 - Method for particulate reagent sample treatment (1995-02-28),

9. 5382804 - Compact photoinization systems (1995-01-17),

10. 5353113 - Single and multiple radiation transparent afterglow electric discharge (1994-10-04),

11. 5272308 - Direct injection micro nebulizer and enclosed filter solvent removal (1993-12-21),

12. 5259254 - Sample introduction system for inductively coupled plasma and other (1993-11-09),

13. 5233156 - High solids content sample torches and method of use (1993-08-03),

14. 5212365 - Direct injection micro nebulizer system and method of use (1993-05-18),

15. 5192865 - Atmospheric pressure afterglow ionization system and method of use, for (1993-03-09),

Cetac Technologies, Inc., based in Omaha, NE, specializes in the development and manufacturing of advanced analytical instrumentation and sample introduction systems. The company focuses on enhancing the efficiency and accuracy of elemental analysis across various industries, including environmental monitoring, pharmaceuticals, and materials science. With a commitment to innovation, Cetac Technologies aims to provide solutions that improve laboratory workflows and data quality, supporting researchers and scientists in their analytical endeavors.

Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

16 Patents

#25 in Omaha, NE

#63 in Nebraska

#19,898 in US

#37,766 in the World

Omaha, NE, United States of America

Cetac Technologies, Inc.

Forward Citations = 342

9 inventors:

Jianzhong Zhu (7 out of 10 patents)

Daniel R Wiederin (5 out of 158 patents)

Arthur P D'Silva (4 out of 10 patents)

4. John E Sutton (2 out of 2 patents)

5. Douglas T Gjerde (1 out of 104 patents)

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