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For the Inventor, By the Inventor

North Hollywood, CA, United States of America

Chapman/leonard Studio Equipment, Inc.

USPTO Granted Patents = 80

% Expired Patents = 11.3



Trademarks = 10

Forward Citations = 855

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11 inventors (with patents filed for the assignee):

goldMedal Leonard T Chapman (79 out of 119 patents)

silverMedal David Gasparian (2 out of 2 patents)

bronzeMedal Stanislov Gorbatov (2 out of 2 patents)

4.  Charles L Huenergardt (2 out of 2 patents)

5.  Sarmen Mirzakhanian (1 out of 1 patent)

6.  Stas Gorbatov (1 out of 1 patent)

7.  Hassan Kahn (1 out of 1 patent)

8.  Lev Nikolaevich Yevstratov (1 out of 2 patents)

9.  Robert Stawinski (1 out of 1 patent)

10.  Vladimir Vasilievich Kozlov (1 out of 3 patents)

11.  Graham Baskett (1 out of 1 patent)

12.  Lev N Yevstratov (0 patent)

13.  Vladimir V Kozlov (0 patent)


Core Competencies:
Telescoping Crane
Camera Dolly
Stabilization System
Camera Platform
Shock Isolator
Electric Camera Crane
Camera Slider
Mobile Base
Camera Head
Camera Jib
Dampening System
Camera Tractor

80 patents:

1. 12466703 - Dynamic counterbalance adjustment for telescoping cranes (2025-11-11),
2. 11422437 - Telescoping electric camera crane (2022-08-23),
3. 11309606 - Battery pack assembly for camera crane and equipment (2022-04-19),
4. 11292704 - Powered mobile base for a camera crane (2022-04-05),
5. 11099464 - Camera dolly electrical system (2021-08-24),
6. 10725362 - Light weight two or three axis remote camera head (2020-07-28),
7. 10151966 - Balanced camera slider (2018-12-11),
8. 10146108 - Balanced camera slider (2018-12-04),
9. 9915395 - Camera crane tractor (2018-03-13),
10. 9638986 - Mobile base for a camera crane (2017-05-02),
11. 9507244 - Lightweight telescoping camera crane (2016-11-29),
12. 9304324 - Invertible vertical axis shock and vibration isolator for a camera (2016-04-05),
13. 9260045 - Camera crane transport vehicle (2016-02-16),
14. 9243371 - Adjustable width and folding camera dolly track (2016-01-26),
15. 9211895 - Camera dolly (2015-12-15),
Company Overview
Chapman/Leonard Studio Equipment, Inc. is a prominent manufacturer based in North Hollywood, California, specializing in advanced camera support systems for the film and television industry. The company focuses on developing innovative solutions such as telescoping cranes, camera dollies, and stabilization systems, which enhance the efficiency and creativity of cinematography. Their expertise extends to creating mobile bases, electric camera cranes, and camera sliders, ensuring filmmakers have reliable and versatile equipment for various shooting environments.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

Chapman/leonard Studio Equipment, Inc. USPTO Patent Assignee Logo
80 Patents

#3 in North Hollywood, CA

#1,071 in California

#4,633 in US

#9,463 in the World

North Hollywood, CA (US)
North Hollywood, CA, United States of America

Chapman/leonard Studio Equipment, Inc.

Forward Citations = 855

11 inventors:

goldMedal Leonard T Chapman (79 out of 119 patents)

silverMedal David Gasparian (2 out of 2 patents)

bronzeMedal Stanislov Gorbatov (2 out of 2 patents)

4.  Charles L Huenergardt (2 out of 2 patents)

5.  Sarmen Mirzakhanian (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Chapman/leonard Studio Equipment, Inc.. Retrieved from https://idiyas.com/company/chapman-leonard-studio-equipment

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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