3Holloway, David Howard. Seed germination medium.America patent. September 2002.
4Billings, Lanny D. Apparatus and method for planting seeds, fertilizing and applying chemicals using biodegradable applicator tape. America patent. August 1992.
5Wood. Donaldc, wood. James D. Seed tape planting system. America patent. September 1989.
6Haruto Okita, Frederick. Seed tape. European patent.October. 1990.
7Troy Lee Cochran, Melvin Douglas Kirkpatrick. Improvements in or relating to an apparatus and a method for making a seed tape and the resulting seed tape. European patent. May 1995.
8Kuz Menko V P, Mironov B A. Seed tape making machine. European patent. April 1998.
9Kon Yoshiyuki (JP). Seed tape. European patent.March 1989.
10Schollanton (DE). Bio: degradabol sowing tape for seed.August 1996.