For the Inventor, By the Inventor

Enter assignee name

Spirit Lake, IA, United States of America

Crystal Tips, Inc.

USPTO Granted Patents = 3

Forward Citations = 43

Loading Chart...

Loading Chart...

4 inventors (with patents filed for the assignee):

Larry N McAllister (1 out of 14 patents)

Michael D Corey (1 out of 1 patent)

James S Guffey (1 out of 1 patent)

4. Richard D Maxwell (1 out of 1 patent)

3 patents: Sort by Forward Citations

1. 5038573 - Formation of ice cubes with distinctive markings (1991-08-13),

2. D314579 - Ice maker cabinet (1991-02-12),

3. 4896800 - Siphon purge system (1990-01-30),

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

3 Patents

#5 in Spirit Lake, IA

#464 in Iowa

#73,766 in US

Spirit Lake, IA, United States of America

Crystal Tips, Inc.

Forward Citations = 43

4 inventors:

Larry N McAllister (1 out of 14 patents)

Michael D Corey (1 out of 1 patent)

James S Guffey (1 out of 1 patent)

4. Richard D Maxwell (1 out of 1 patent)

Please report any incorrect information to [email protected]

Loading…