Inventor
Louis Brian Chapko
Inventor
West Des Moines, IA, US
Overview
Patents· 13 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
A01Hprimary
A01HNew plants or non-transgenic processes for obtaining them72%
C12NMicroorganisms or enzymes17%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests11%
PatentTitleYear
9,955,641Maize hybrid X95H70020189,894,867'Maize hybrid X00H389'20189,872,477Maize hybrid X80H13320187,294,774'Inbred maize line PHBAB'20077,270,380'Inbred maize line PH7JB'20077,214,864'Inbred maize line PH7JD'20076,969,788'Inbred maize line PHBAB'20056,740,796'Inbred maize line PH7JB'20046,080,919'Inbred maize line PH1GG'20006,077,998'Hybrid maize plant and seed 35B26'20005,948,957'Inbred maize line PH19V'19995,731,494'Hybrid maize plant and seed (3820)'19985,569,818'Inbred maize line phap8'1996Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1996–2018Patents assigned to PIONEER HI BRED INT (13)· patent assignee history
1996–1998Based in Alma, MI, US· patent location history
1999–2000Based in Princeton, IL, US· patent location history
2004–2007Based in Towanda, IL, US· patent location history
2005–2018Based in West Des Moines, IA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| PIONEER HI BRED INT | 13 | 1996–2018 |
Locations
| Location | Patents | Span |
|---|---|---|
| West Des Moines, IA, US | 5 | 2005–2018 |
| Towanda, Illinois, US | 3 | 2004–2007 |
| Princeton, Illinois, US | 3 | 1999–2000 |
| Alma, MI, US | 2 | 1996–1998 |