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For the Inventor, By the Inventor

Calgary, Canada

Hemisphere Gps LLC


USPTO Granted Patents = 33



Trademarks = 3

Forward Citations = 1,405

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27 inventors (with patents filed for the assignee):

goldMedal John A McClure (16 out of 44 patents)

silverMedal Michael L Whitehead (11 out of 32 patents)

bronzeMedal John T E Timm (8 out of 13 patents)

4.  Walter J Feller (8 out of 32 patents)

5.  Richard W Heiniger (7 out of 10 patents)

6.  Dennis M Collins (6 out of 15 patents)

7.  Steven R Miller (5 out of 12 patents)

8.  Kent D Funk (5 out of 5 patents)

9.  Richard B Wong (3 out of 4 patents)

10.  Xiaoping Wen (2 out of 3 patents)

11.  David R Reeve (2 out of 6 patents)

12.  Andrew J Jakab (2 out of 3 patents)

13.  Cary Davis (2 out of 3 patents)

14.  Bradley Paul Badke (2 out of 12 patents)

15.  Aaron Dale Hunt (1 out of 7 patents)


Core Competencies:
GNSS Control System
Multi-Frequency Receiver
Vehicle Guidance
Antenna Manufacturing
Soil Sampling
Differential Correction
Tracking Systems
Adaptive Control
Satellite Positioning
Bias Removal
Communication Systems
Optical Tracking

33 patents:

1. 8489291 - System and method for collecting soil samples (2013-07-16),
2. 8401704 - GNSS control system and method for irrigation and related applications (2013-03-19),
3. 8334804 - Multi-frequency GNSS receiver baseband DSP (2012-12-18),
4. 8311696 - Optical tracking vehicle control system and method (2012-11-13),
5. 8307535 - Multi-frequency antenna manufacturing method (2012-11-13),
6. 8271194 - Method and system using GNSS phase measurements for relative positioning (2012-09-18),
7. 8265826 - Combined GNSS gyroscope control system and method (2012-09-11),
8. 8217833 - GNSS superband ASIC with simultaneous multi-frequency down conversion (2012-07-10),
9. 8214111 - Adaptive machine control system and method (2012-07-03),
10. 8190337 - Satellite based vehicle guidance control in straight and contour modes (2012-05-29),
11. 8184050 - Antenna alignment and monitoring system and method using GNSS (2012-05-22),
12. 8174437 - System and method for augmenting DGNSS with internally-generated differential correction (2012-05-08),
13. 8140223 - Multiple-antenna GNSS control system and method (2012-03-20),
14. 8138970 - GNSS-based tracking of fixed or slow-moving structures (2012-03-20),
15. 8102325 - GNSS antenna with selectable gain pattern, method of receiving GNSS signals and antenna manufacturing method (2012-01-24),
Hemisphere GPS LLC specializes in advanced positioning and navigation technologies, focusing on high-precision GPS solutions for various applications. The company develops innovative products that cater to industries such as agriculture, construction, and marine, enhancing operational efficiency through accurate location data. With a strong presence in Calgary, Canada, Hemisphere GPS is committed to delivering cutting-edge technology that supports the evolving needs of its global clientele.
Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Oct 6 2026

Hemisphere Gps LLC
33 Patents

#23 in Calgary

#405 in Canada

#20,130 in the World

Calgary, CA
Calgary, Canada

Hemisphere Gps LLC

Forward Citations = 1,405

27 inventors:

goldMedal John A McClure (16 out of 44 patents)

silverMedal Michael L Whitehead (11 out of 32 patents)

bronzeMedal John T E Timm (8 out of 13 patents)

4.  Walter J Feller (8 out of 32 patents)

5.  Richard W Heiniger (7 out of 10 patents)

Please report any incorrect information to [email protected]
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