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OLUMA INC

Overview
  • Total Patents
    20
About

OLUMA INC has a total of 20 patent applications. Its first patent ever was published in 2001. It filed its patents most often in United States, Australia and WIPO (World Intellectual Property Organization). Its main competitors in its focus markets optics and machine tools are EMIT SEIKO CO LTD, JIAXING XURUI ELECTRONIC TECH CO LTD and R & D INST OF METALS & COMPOSI.

Patent filings in countries

World map showing OLUMA INCs patent filings in countries

Patent filings per year

Chart showing OLUMA INCs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Optics
#2 Machine tools

Top inventors

# Name Total Patents
#1 Zhao Shulai 17
#2 Pi Bo 16
#3 Costa Joannes M 2
#4 Levert Joseph A 2
#5 Collins Timothy C 2
#6 Chen Zheng 2
#7 Koinkar Vilas 2
#8 Morse Robert 1
#9 Chen Zhihao 1
#10 Li Jian 1

Latest patents

Publication Filing date Title
US6912343B1 Adjustable fiber optical filters
US6744948B1 Fiber tap monitor based on evanescent coupling
US6719608B1 Fabrication of devices with fibers engaged to grooves on substrates
US6597833B1 Wavelength-division multiplexers and demultiplexers based on mach-zehnder interferometers and evanescent coupling
US6542663B1 Coupling control in side-polished fiber devices
US6571035B1 Fiber optical switches based on optical evanescent coupling between two fibers
US6621952B1 In-fiber variable optical attenuators and modulators using index-changing liquid media
US6490391B1 Devices based on fibers engaged to substrates with grooves
US6549713B1 Stabilized and integrated fiber devices
US6621951B1 Thin film structures in devices with a fiber on a substrate
US6501875B2 Mach-Zehnder inteferometers and applications based on evanescent coupling through side-polished fiber coupling ports
WO0201262A2 Evanescent optical coupling between a waveguide formed on a substrate and a side-polished fiber
US6625349B2 Evanescent optical coupling between a waveguide formed on a substrate and a side-polished fiber
US6516114B2 Integration of fibers on substrates fabricated with grooves