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USPTO Patent Rankings Data through Dec 31, 2025
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Yasar Halefoglu — 6 Patents

STSima Technologies: 6 patents #4 of 24Top 20%
Aliso Viejo, CA: #182 of 729 inventorsTop 25%
California: #94,478 of 386,348 inventorsTop 25%
Overall (All Time): #779,687 of 4,157,543Top 20%
6 Patents All Time
Yasar Halefoglu has been granted 6 US patents while listed as an inventor at Sima Technologies. The first was granted in 2005 and the most recent in October 2006. Yasar Halefoglu ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list Yasar Halefoglu in Aliso Viejo, CA, US.

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
7125912 Doped sol-gel materials and method of manufacture utilizing reduced mixing temperatures Shiho Wang, Chih-hsing Cheng, Dengfeng Xu, David Kwong Nung Chan, Meng-ying Chen +1 more 2006-10-24
7026362 Sol-gel process utilizing reduced mixing temperatures Shiho Wang, Chih-hsing Cheng, Dengfeng Xu, David Kwong Nung Chan, Meng-ying Chen +1 more 2006-04-11
7000885 Apparatus and method for forming a sol-gel monolith utilizing multiple casting Shiho Wang, Chih-hsing Cheng, Dengfeng Xu 2006-02-21
7001568 Method of removing liquid from pores of a sol-gel monolith Shiho Wang, Ryan J. White 2006-02-21
6928220 Sol-gel-derived optical fiber preform and method of manufacture Shiho Wang, Chih-hsing Cheng 2005-08-09
6884822 Sol-gel process utilizing reduced mixing temperatures Shiho Wang, Chih-hsing Cheng, Dengfeng Xu, David Kwong Nung Chan, Meng-ying Chen +1 more 2005-04-26