Inventor

Yang Zehni

Inventor

Ningbo, CN

Overview

7→

Patents

2017–2021

Patent span

Chemistry

Primary field (CPC C)

Patents· 7 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C05Cprimary

C05CNitrogenous fertilisers25%

C05GMixtures of fertilisers covered individually by different subclasses of class c0525%

C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium25%

C09KMaterials for miscellaneous applications, not provided for elsewhere25%

PatentTitleYear

11,021,414Liquid formulations of urease inhibitors for fertilizers2021 11,001,537Liquid formulations of urease inhibitors for fertilizers2021 10,597,338Liquid formulations of urease inhibitors for fertilizers2020 10,329,208Liquid formulations of urease inhibitors for fertilizers2019 10,301,231Liquid formulations of urease inhibitors for fertilizers2019 10,221,108Liquid formulations of urease inhibitors for fertilizers2019 9,732,008'Liquid formulations of urease inhibitors for fertilizers'2017

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2017–2019Patents assigned to MCKNIGHT GARY DAVID (2)· patent assignee history

2017–2019Patents assigned to PARKER DAVID BRUCE (2)· patent assignee history

2017–2019Patents assigned to PERKINS RAY (2)· patent assignee history

2017–2021Based in Ningbo, CN· patent location history

2019–2021Patents assigned to WORLD SOURCE ENTPR LLC (2)· patent assignee history

2019–2020Patents assigned to WORLD SOURCES ENTPR LLC (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
MCKNIGHT GARY DAVID	2	2017–2019
PARKER DAVID BRUCE	2	2017–2019
PERKINS RAY	2	2017–2019
WORLD SOURCE ENTPR LLC	2	2019–2021
WORLD SOURCES ENTPR LLC	2	2019–2020

Locations

Location	Patents	Span
Ningbo, CN	7	2017–2021