Patents by Inventor Steven K. Kirn

Steven K. Kirn has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Top-locking bollard
    Patent number: 11060254
    Abstract: A lockable bollard to be anchored into the ground includes a substantially vertical post that is rectangular in cross section, with a base having a base fastening structure extending downwardly to be anchored into the ground to which the post is to be anchored. A control shaft extends substantially the entire length of the post, the control shaft having an operating handle adjacent a top end and having a lower engagement feature adjacent a bottom end designed to selectively engage the base when the shaft is in a predetermined position. A closure is disposed adjacent the top of the post to permit selective access to the operating handle.
    Type: Grant
    Filed: November 6, 2019
    Date of Patent: July 13, 2021
    Assignee: COLUMBIA CASCADE COMPANY
    Inventor: Steven K. Kirn
  • TOP-LOCKING BOLLARD
    Publication number: 20200224378
    Abstract: A lockable bollard to be anchored into the ground includes a substantially vertical post that is rectangular in cross section, with a base having a base fastening structure extending downwardly to be anchored into the ground to which the post is to be anchored. A control shaft extends substantially the entire length of the post, the control shaft having an operating handle adjacent a top end and having a lower engagement feature adjacent a bottom end designed to selectively engage the base when the shaft is in a predetermined position. A closure is disposed adjacent the top of the post to permit selective access to the operating handle.
    Type: Application
    Filed: November 6, 2019
    Publication date: July 16, 2020
    Applicant: Columbia Cascade Company
    Inventor: Steven K. Kirn
  • Bicycle rack
    Patent number: D665709
    Type: Grant
    Filed: May 27, 2011
    Date of Patent: August 21, 2012
    Assignee: Columbia Cascade Company
    Inventors: Christopher J. Longfellow, Steven K. Kirn
  • Bicycle rack
    Patent number: D697837
    Type: Grant
    Filed: January 29, 2013
    Date of Patent: January 21, 2014
    Assignee: Columbia Cascade Company
    Inventor: Steven K. Kirn
  • Park bench
    Patent number: D812924
    Type: Grant
    Filed: September 27, 2016
    Date of Patent: March 20, 2018
    Assignee: Columbia Cascade Company
    Inventors: Steven K. Kirn, Steven E. Koch
  • Park bench
    Patent number: D880879
    Type: Grant
    Filed: January 8, 2018
    Date of Patent: April 14, 2020
    Assignee: COLUMBIA CASCADE COMPANY
    Inventors: Steven K. Kirn, Steven E. Koch
  • Picnic table
    Patent number: D985286
    Type: Grant
    Filed: March 17, 2021
    Date of Patent: May 9, 2023
    Assignee: Columbia Cascade Company
    Inventor: Steven K. Kirn