US Plant Patent PP6169
Botryococcus braunii var. Showa
PUBLIC DOMAIN
Patent expired April 15, 2006. This plant is in the public domain — anyone may propagate and sell it.
No term adjustment or disclaimer is recorded against this patent, so this is the full statutory term — twenty years from the filing date.
The record
- Patent number
- PP6169
- Filed
- April 15, 1986
- Granted
- May 3, 1988
- Expires
- April 15, 2006
- Assignee
- UNIV CA
- Inventor
- NONOMURA ARTHUR M
No cultivar name of record
This patent does not name the plant. Through the 1980s and early 1990s that was still common: naming every new cultivar only became standard practice as plants began to be marketed under brand names. The grant identifies this one by its number and by a written description instead.
Nothing here is missing from our records: the patent itself states no name. Where one exists we show it, and we do not invent one.
Abstract
Botryococcus braunii var. showa is chemotaxonomically distinct from previously cultured strains of the species in quality and quantity of hydrocarbons produced in vitro. Morphological and cultural differences distinguish this variety from other cultured strains of Botryococcus braunii. In particular, the variety is characterized by the ability to produce and secrete large amounts of botryococcenes during all phases of its growth cycle.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
What is claimed is: 1. A new and distinct variety of algal plant having the characteristics described and illustrated herein.
Read the full patent: US Plant Patent PP6169 in full — the complete specification, every figure, and the file history.