8,070,875 Jeknavorian, Ara A.; Koyata, Hideo; McGuire, Darrick B.; and Jovanovic, Ivana; Slump retention in cementitious compositions

7,972,436 Ou, Chia-Chih; Jeknavorian, Ara A., and Hill, Christon L., Air management in cementitious mixtures having plasticizer and a clay-activity modifying agent

7,462,236 Chun, Byong-Wa; Jeknavorian, Ara A.; and Porteneuve, Charlotte B., Gluconate broth for cement and concrete admixture

7,053,125 Lewis, Jennifer A.; Kirby, Glen (Urbana, IL); Cheung, Josephine Ho-Wah; and Jeknavorian, Ara Avedis, Controlled dispersion of colloidal suspension by comb polymers

7,048,793 Chun, Byong-wa,Dair; Benita, Porteneuve; Charlotte B., Jeknavorian, Ara Avedis, Cheung, Josephine Ho-Wah, and Roberts, Lawrence R., Beneficiated Water Reducer Compositions

6,916,369 Chun, Byong-wa,Dair; Benita, Porteneuve; Charlotte B., Jeknavorian, Ara Avedis; Cheung, Josephine Ho-Wah; and Roberts, Lawrence R., Beneficiated Water Reducer Compositions

6,858,661 Zhang, Xuan; Cheung, Josephine Ho-Wah; Jeknavorian, Ara Avedis, Defoamer for water reducer admixture 

6,670,415 Jardine, Leslie A.; Koyata, Hideo; Folliard, Kevin J.; Ou, Chia-Chih; Jachimowicz, Felek; Chun, Byong-Wa; Jeknavorian, Ara A; and Hill, Christon L., Admixture for optimizing addition of EO/PO plasticizers

6,441,054 Ou, Chia-Chih; Jeknavorian, Ara A.; Hill, Christon L., Air management in cementitious mixtures having plasticizer and a clay-activity modifying agent

6,352,952 Jardine,Leslie A.; Koyata,Hideo; Folliard, Kevin J.; Ou, Chia-Chih; Jachimowicz, Felek; Chun, Byong-Wa; Jeknavorian, Ara A.;and Hill, Christon L. Admixture and method for optimizing addition of EO/PO superplasticizer to concrete containing smectite clay-containing aggregates

6,139,623 Darwin, David Charles; Taylor, Robert T.; Jeknavorian, Ara A.; and Shen, Ding Feng, Emulsified comb polymer and defoaming agent composition and method of making same

5,840,114 Jeknavorian, Ara Avedis, ; Arfaei, Ahmad; Berke, Neal Steven; Darwin, David Charles; Gartner, Ellis Martin; Jardine, Leslie Ann; Lambert, James Franklin; and Roberts, Lawrence Reeder, High early-strength-enhancing admixture for precast hydraulic cement and compositions containing same

5,736,600 Karkare, Milind V.; Ou, Chia-Chih; Walloch, Craig T.; and Jeknavorian,Ara A., Mortar admixtures and method of preparing same.

 5,641,352 Jeknavorian, Ara A. and Jardine, Leslie, Nitrogenous strength enhancers for portland cement

5,348,583 Arfaei, Ahmad; Berke, Neal S.; Jeknavorian, Ara A.; Gartner, Ellis M.; Hartman, Judith Ann R.; and Myers, David F., Hydraulic cement set-accelerating admixtures incorporating glycols

5,340,385 Arfaei, Ahmad;, Berke, Neal S.; and Jeknavorian, Ara A., Hydraulic cement set-accelerating admixtures incorporating glycols 

5,211,751 Arfaei, Ahmad; Jardine, Leslie A.; and Jeknavorian, Ara, Hydraulic cement set-accelerating admixtures incorporating amino acid derivatives

Patent Applications

PUB. APP. NO. 20110029134 Hazrati, K; Jeknavorian, Ara A.; and Koehler, E., Method For Monitoring Thixotropy In Concrete Mixing Drum

20040072939 Cornman, Charles R.; Hughes, David William; Jeknavorian, Ara Avedis; Koyata, Hideo; Shen, Ding Feng; and Ou, Chia-Chih; Viscosity modifying agents and water reducers

PCT/GB2012/052975  Vincent, Danny; Dananche, Eric; and Jeknavorian, Ara, Composition and method for obtaining exposed aggregates in surfaces of molded concrete and other cementitious materials

 61/635936 Ying, C.; Kuo, Lawrence; and Jeknavorian, Ara A., Stabilized defoamers for cementitious compositions