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For the Inventor, By the Inventor

Louisville, KY, United States of America

Extundo Incorporated


USPTO Granted Patents = 17

% Expired Patents = 47.1


Trademarks = 1

Forward Citations = 23

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10 inventors (with patents filed for the assignee):

goldMedal Clifford L Johns (17 out of 42 patents)

silverMedal Dennis Patrick McAndrews (8 out of 14 patents)

bronzeMedal Munaf Chasmawala (8 out of 12 patents)

4.  Douglas K Cornett (5 out of 5 patents)

5.  Matthew Laughlin (4 out of 4 patents)

6.  Guillermo Camoriano (3 out of 5 patents)

7.  Bart Andrew Nuss (2 out of 48 patents)

8.  Daniel D Sympson (2 out of 14 patents)

9.  August M Dattilo, Iii (1 out of 5 patents)

10.  Manfred W Schmidt (1 out of 12 patents)

11.  Manfred Schmidt (0 patent)

12.  Munaf Najmuddin Chasmawala (0 patent)

13.  August M Dattilo Iii (0 patent)


17 patents:

1. 9500631 - Device for testing vertical tubes in a chemical reactor (2016-11-22),
2. 9293067 - Device for marking a wire (2016-03-22),
3. 9205391 - Device for injecting gas into the tubes of a chemical reactor (2015-12-08),
4. 9149778 - Device and method for dispensing catalyst pellets (2015-10-06),
5. 9138710 - Device for unloading catalyst from a reactor vessel (2015-09-22),
6. 9138709 - Device and method for dispensing pellets (2015-09-22),
7. 9034110 - Method of cleaning tubes (2015-05-19),
8. 8753452 - Method for treating vertical tubes in a chemical reactor (2014-06-17),
9. 8752912 - Carrying case conversion to desk (2014-06-17),
10. 8752291 - Method for marking tubes in a shell and tube heat exchanger (2014-06-17),
11. 8646492 - Device for loading catalyst into a reactor vessel (2014-02-11),
12. 8562270 - Loading arrangement including a dam for confining catalyst and other particles on the top tubesheet of a chemical reactor (2013-10-22),
13. 8511249 - Pointer arrangement for marking tubes in a shell and tube heat exchanger (2013-08-20),
14. 8336586 - Loading sleeve and method for loading chemical reactor tubes (2012-12-25),
15. 8166811 - Device and process for precision loading of particles in a vertical tube chemical reactor (2012-05-01),
Company Overview
Extundo Incorporated, based in Louisville, KY, specializes in advanced technology solutions focused on enhancing operational efficiency and sustainability. The company is dedicated to developing innovative products and services that leverage cutting-edge research in fields such as environmental technology and industrial automation. By integrating smart technologies, Extundo aims to address complex challenges in various sectors, promoting a more sustainable future while driving economic growth in the region.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

17 Patents

#33 in Louisville, KY

#79 in Kentucky

#18,903 in US

#35,948 in the World

Louisville, KY (US)
Louisville, KY, United States of America

Extundo Incorporated

Forward Citations = 23

10 inventors:

goldMedal Clifford L Johns (17 out of 42 patents)

silverMedal Dennis Patrick McAndrews (8 out of 14 patents)

bronzeMedal Munaf Chasmawala (8 out of 12 patents)

4.  Douglas K Cornett (5 out of 5 patents)

5.  Matthew Laughlin (4 out of 4 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Extundo Incorporated. Retrieved from https://idiyas.com/company/extundo

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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