Company Badge
USPTO Data Jan 1 1976 - Oct 6 2026
42 Patents
#115 in Wilmington, DE
#142 in Delaware
#8,253 in US
#16,338 in the World
Denco Corporation
Forward Citations = 1,321
13 inventors:
Wilmington, DE, United States of America
Denco Corporation
% Expired Patents = 7.1
Trademarks = 5
Forward Citations = 1,321
Loading Chart...
Loading Chart...
13 inventors (with patents filed for the assignee):
Dudley W Spencer (32 out of 46 patents)
Ivars V Ivansons (14 out of 18 patents)
John B Shaposka (13 out of 13 patents)
4. Valdis Ivansons (6 out of 6 patents)
5. Dudley W C Spencer (5 out of 9 patents)
6. Theresa M Preston (2 out of 2 patents)
7. Kazuyoshi Isaji (1 out of 39 patents)
8. Hideki Kato (1 out of 21 patents)
9. Gregory M Bak (1 out of 1 patent)
10. Robert J Beird (1 out of 1 patent)
11. David Macklin (1 out of 1 patent)
12. Esmond Grattan (1 out of 1 patent)
13. Vadlis Ivansons (1 out of 1 patent)
Core Competencies:
Ozone Infection Control
Welding Plastic Tubes
Safety Device
Spin-Hemodialysis
Female Urinary Device
Sterile Containment
Medical Solutions
Hybrid Welding Wafer
Total Containment
Ionomeric Modified Plastic
Cryogenic Containers
Techniques for Welding
42 patents:
7. 6637489 - Wafer for use in the selective connecting and disconnecting of plastic tubes (2003-10-28),
10. 6132833 - Wafer for use in selective connecting and disconnecting of plastic tubes (2000-10-17),
Company Overview
Denco Corporation, headquartered in Wilmington, DE, specializes in advanced medical and safety technologies. The company focuses on developing innovative solutions in ozone infection control, medical tubing, and sterile containment welding. Denco's expertise extends to plastic tube welding and the creation of vehicle safety devices, enhancing both healthcare and automotive sectors. Additionally, the company is involved in the production of cryogenic plastic containers and female urinary devices, demonstrating a commitment to diverse and impactful engineering applications.
Profile summary synthesized from public USPTO records and patent filings.
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Denco Corporation. Retrieved from https://idiyas.com/company/denco
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]
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]
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]