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For the Inventor, By the Inventor

Greenville, DE, United States of America

Arco Chemical Technology, L.p.


USPTO Granted Patents = 628

% Expired Patents = 5.7


Forward Citations = 7,092

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288 inventors (with patents filed for the assignee):

goldMedal Bi Le-Khac (39 out of 69 patents)

silverMedal Shao-Hua Guo (34 out of 46 patents)

bronzeMedal Roger A Grey (33 out of 68 patents)

4.  John G Zajacek (33 out of 48 patents)

5.  Haven S Kesling, Jr (29 out of 54 patents)

6.  Anne Mae Gaffney (25 out of 112 patents)

7.  John C Jubin, Jr (25 out of 26 patents)

8.  Robert G Gastinger (25 out of 34 patents)

9.  Lau S Yang (24 out of 27 patents)

10.  Robert N Cochran (22 out of 29 patents)

11.  Charles F Cooper (22 out of 27 patents)

12.  Edward T Shawl (20 out of 35 patents)

13.  Andrew P Kahn (19 out of 37 patents)

14.  Guy L Crocco (19 out of 20 patents)

15.  Mahmoud K Faraj (18 out of 18 patents)


Core Competencies:
Epoxidation
Propylene Oxide
Catalyst Regeneration
Polymer Encapsulation
Acrylic Coatings
Hydroformylation
Tertiary Butyl Alcohol
Vinyl Aromatic Copolymers
Oxidation Reactions
Allylic Copolymers
Titanium Zeolites
Polyester Resins

628 patents:

1. 7022885 - Purification on methyl tertiary butyl ether (2006-04-04),
2. 6960671 - Process for direct oxidation of propylene to propylene oxide and large particle size titanium silicalite catalysts for use therein (2005-11-01),
3. 6958405 - Polymer-encapsulated titanium zeolites for oxidation reactions (2005-10-25),
4. 6936740 - Dense phase oxidation of benzene (2005-08-30),
5. 6930143 - Acrylic latex composition (2005-08-16),
6. 6914167 - Vent recovery system (2005-07-05),
7. 6906200 - Production of N-vinyl pyrrolidone (2005-06-14),
8. 6906136 - UV-curable compositions (2005-06-14),
9. 6884898 - Propylene oxide process (2005-04-26),
10. 6872679 - Heterogeneous catalyst regeneration (2005-03-29),
11. 6870060 - Product recovery from supercritical mixtures (2005-03-22),
12. 6869988 - Solid supported comb-branched copolymers as an additive for gypsum compositions (2005-03-22),
13. 6867312 - Propylene oxide process (2005-03-15),
14. 6815513 - Process for preparing comb-branched polymers (2004-11-09),
15. 6803491 - Preparation of lithium phosphate catalysts (2004-10-12),
Company Overview
Arco Chemical Technology, L.P., based in Greenville, DE, specializes in advanced epoxidation processes, focusing on the production of propylene oxide and related chemical intermediates. The company is recognized for its innovations in catalyst regeneration and polymer encapsulation, contributing to the development of high-performance acrylic coatings and vinyl aromatic copolymers. With a commitment to enhancing chemical manufacturing efficiency, Arco plays a vital role in the chemical industry, addressing both performance and sustainability challenges.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 13 2026

Arco Chemical Technology, L.p. USPTO Patent Assignee Logo
628 Patents

#1 in Greenville, DE

#16 in Delaware

#793 in US

#1,574 in the World

Greenville, DE (US)
Greenville, DE, United States of America

Arco Chemical Technology, L.p.

Forward Citations = 7,092

288 inventors:

goldMedal Bi Le-Khac (39 out of 69 patents)

silverMedal Shao-Hua Guo (34 out of 46 patents)

bronzeMedal Roger A Grey (33 out of 68 patents)

4.  John G Zajacek (33 out of 48 patents)

5.  Haven S Kesling, Jr (29 out of 54 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Arco Chemical Technology, L.p.. Retrieved from https://idiyas.com/company/arco-chemical-technology

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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