Inventor
LI CHENGJIE
CN19 patents
⚠️ This page may combine multiple inventors who share the name “LI CHENGJIE”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PNEUMA RESPIRATORY INC
16 patentsUS10525220B2Jan 7, 2020
Droplet delivery device for delivery of fluids to the pulmonary system and methods of use
PNEUMA RESPIRATORY INC38 citations97
US10449314B2Oct 22, 2019
Droplet delivery device for delivery of fluids to the pulmonary system and methods of use
PNEUMA RESPIRATORY INC33 citations97
US9962507B2May 8, 2018
Droplet delivery device for delivery of fluids to the pulmonary system and methods of use
PNEUMA RESPIRATORY INC65 citations97
US9956360B2May 1, 2018
Methods for generating and delivering droplets to the pulmonary system using a droplet delivery device
PNEUMA RESPIRATORY INC68 citations97
US11285283B2Mar 29, 2022
Methods for generating and delivering droplets to the pulmonary system using a droplet delivery device
PNEUMA RESPIRATORY INC15 citations94
US10898666B2Jan 26, 2021
Methods for generating and delivering droplets to the pulmonary system using a droplet delivery device
PNEUMA RESPIRATORY INC26 citations94
US11771852B2Oct 3, 2023
Electronic breath actuated in-line droplet delivery device with small volume ampoule and methods of use
PNEUMA RESPIRATORY INC14 citations86
US11738158B2Aug 29, 2023
Electronic breath actuated in-line droplet delivery device and methods of use
PNEUMA RESPIRATORY INC10 citations86
US11458267B2Oct 4, 2022
Nasal drug delivery apparatus and methods of use
PNEUMA RESPIRATORY INC12 citations86
US12569627B2Mar 10, 2026
Droplet device with ejector closure
PNEUMA RESPIRATORY INC0 citations62
US12564690B2Mar 3, 2026
Droplet device with customizable resistance
PNEUMA RESPIRATORY INC0 citations62
US12521498B2Jan 13, 2026
Droplet delivery device with location control
PNEUMA RESPIRATORY INC0 citations62
US12491324B2Dec 9, 2025
Droplet device with inertial filtering
PNEUMA RESPIRATORY INC0 citations62
US12285559B2Apr 29, 2025
Nasal drug delivery apparatus and methods of use
PNEUMA RESPIRATORY INC0 citations62
US12403269B2Sep 2, 2025
Droplet delivery device with push ejection
PNEUMA RESPIRATORY INC0 citations56
US11793945B2Oct 24, 2023
Droplet delivery device with push ejection
PNEUMA RESPIRATORY INC0 citations56