Inventor
Hoi K. Lai
Inventor
Guelph, CA
Overview
Patents· 13 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
A01Nprimary
A01NPreservation of bodies of humans or animals or plants or parts thereof39%
C07DHeterocyclic compounds39%
C07CAcyclic or carbocyclic compounds4%
G05DSystems for controlling or regulating non-electric variables4%
G06KGraphical data reading4%
G06TImage data processing or generation, in general4%
G06VImage or video recognition or understanding4%
H04NPictorial communication, e.g. television4%
PatentTitleYear
10,944,958Method and device for detecting height-limiting rod, and automatic driving system20217,045,512'Fungicidal phenoxyphenylhydrazine derivatives'20066,063,781'Pesticidal phenylpyridazinone derivatives'20005,945,436'Pyridylmethyl nitriles, amides and thioamides useful as fungicides'19995,211,736'Azole derivatives of spiroheterocycles'19935,145,982'Fungicidal oxathin azoles'19925,106,409'Azole derivatives of spiroheterocycles'19925,081,143'Fungicidal oxathiin azoles'19925,006,153'Azole derivatives of naphthalenone oxime ethers'19914,966,910'Fungicidal oxathiin azoles'19904,950,671'Substituted 2-propenyl derivatives of pyridine'19904,943,311'Azole derivatives of spiroheterocycles'19904,857,649'Azole derivatives of naphthalenone oxime esters'1989Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1989–1999Patents assigned to UNIROYAL CHEM CO INC (10)· patent assignee history
1989–1993Patents assigned to UNIROYAL CHEMICAL LTD (9)· patent assignee history
1989–2006Based in Guelph, CA· patent location history
1999Patents assigned to UNIROYAL CHEMICAL CO CIE (1)· patent assignee history
2006Patents assigned to CROMPTON CO CIIE (1)· patent assignee history
2021Patents assigned to BEIJING SMARTER EYE TECH CO LTD (1)· patent assignee history
2021Based in Beijing, CN· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| UNIROYAL CHEM CO INC | 10 | 1989–1999 |
| UNIROYAL CHEMICAL LTD | 9 | 1989–1993 |
| BEIJING SMARTER EYE TECH CO LTD | 1 | 2021 |
| CROMPTON CO CIIE | 1 | 2006 |
| UNIROYAL CHEMICAL CO CIE | 1 | 1999 |
Locations
| Location | Patents | Span |
|---|---|---|
| Guelph, CA | 12 | 1989–2006 |
| Beijing, CN | 1 | 2021 |