{"@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [{"@type": "ListItem", "position": 1, "name": "Home", "item": "https://www.patentleaderboard.com/"}, {"@type": "ListItem", "position": 2, "name": "Unknown", "item": "https://www.patentleaderboard.com/company/unknown"}, {"@type": "ListItem", "position": 3, "name": "Alexander Chang", "item": "https://www.patentleaderboard.com/inventor/fl:al_ln:chang-18"}]}

Home › Unknown › Alexander Chang

AC

Alexander Chang — 3 Patents

UNUnknown: 1 patents #29,356 of 83,584Top 40%

Wilton, CT: #122 of 353 inventorsTop 35%

Connecticut: #12,369 of 34,797 inventorsTop 40%

Overall (All Time): #1,328,092 of 4,157,543Top 35%

3 Patents All Time

Alexander Chang has been granted 3 US patents while listed as an inventor at Unknown. The first was granted in 2011 and the most recent in June 2023. Alexander Chang ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Alexander Chang in Wilton, CT, US.

Patents per Year

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
11679218	Oxygen masks	—	2023-06-20
10646675	Oxygen masks	—	2020-05-12
7895938	Apparatus and method for steam disinfection of liquid dispensing machine	Chung-Chien Chang, Tung-Sheng Chang, Chung-Hsing Lee, Jean Saint Germain	2011-03-01

Alexander Chang — 3 Patents

Patents per Year

Issued Patents All Time

Patent Widget