Growing community of inventors

Port Colborne, Canada

John Kulak

Average Co-Inventor Count = 1.43

ph-index = 3

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 72

John KulakKen K Oka (1 patent)John KulakDavid A Willer (1 patent)John KulakWilliam A Jones (1 patent)John KulakJohn Kulak (5 patents)Ken K OkaKen K Oka (9 patents)David A WillerDavid A Willer (5 patents)William A JonesWilliam A Jones (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Deere + Company (5 from 8,451 patents)


5 patents:

1. 4738091 - Rotary cutter shield

2. 4502268 - Apparatus for cutting upstanding agricultural crops

3. 4424661 - Anti-windrowing attachment for a rotary cutter

4. 4315396 - Shield and deflector means for orchard implement

5. 4258535 - Shielding structure for rotary mower

Please report any incorrect information to support@idiyas.com
idiyas.com
as of
12/19/2025
Loading…